To configure the checkout time-to-live, an admin can update the CheckoutTimeToLive and CheckoutValidAfterDate properties on a Webstore. These properties determine how long a checkout session is valid for a user after they initiate checkout or after they modify their cart. The CheckoutTimeToLive property specifies the number of minutes that a checkout session is valid after it is initiated. The CheckoutValidAfterDate property specifies the number of minutes that a checkout session is valid after it is modified. Reference: Checkout Properties

The "Show in Menu" attribute is used to control whether a category is displayed in the navigation menu of a B2B commerce site. The navigation menu is a component that allows buyers to browse products by category. If the "Show in Menu" attribute is set to false, the category is not shown in the navigation menu, but it can still be accessed by other means, such as search or facets. If the "Show in Menu" attribute is set to true, the category is shown in the navigation menu, unless it is hidden by other settings, such as visibility rules or active dates. Reference: Category Attributes; Navigation Menu Component

Surround the property with curly braces: {property} because this is the syntax for data binding in a Lightning web component template. Data binding is a way to link a property in a component's template to a property in the component's JavaScript class. When the value of the property changes, the component re-renders and updates the template accordingly1. For example, suppose there is a component that has a name property in its JavaScript class:
// helloWorld.js import { LightningElement, api } from 'lwc';
export default class HelloWorld extends LightningElement { // Declare a public name property @api name = 'World'; } To render the name property in the component's template, surround it with curly braces:
<!-- helloWorld.html --> <template> <p>Hello, {name}!</p> </template>
The output will look like this:
Hello, World!

The three configuration options for Effective Accounts are:
Lateral
Entitled
Parent-Child
Lateral Effective Accounts allow buyers to select an account that is associated with their parent account. This is useful for organizations that have a complex hierarchy of accounts and want to allow buyers to easily access the products and services that are available to them.
Entitled Effective Accounts allow buyers to select an account that has been entitled to them. This is useful for organizations that want to give buyers access to specific products and services based on their role or department.
Parent-Child Effective Accounts allow buyers to select an account that is directly below their parent account in the account hierarchy. This is useful for organizations that have a simple account hierarchy and want to make it easy for buyers to access the products and services that are available to their account.
Brother-Sister is not a configuration option for Effective Accounts.
Reference:
Salesforce B2B Commerce Administrator Trailhead module: https://trailhead.salesforce.com/content/learn/modules/b2b-commerce-basics Salesforce B2B Commerce Administrator Study Guide: https://developer.salesforce.com/resources2/certification-site/files/SGAccreditedB2BCommerceAdministrator.pdf

According to the [Enable Self-Registration for B2C Stores] page, self-registration is a feature that allows anonymous users to create their own accounts on a B2C store. To enable self-registration, you need to create public groups that grant access to anonymous users and assign them to the storefront. After creating public groups, two features are enabled for anonymous users: register and checkout. Register allows anonymous users to create their own accounts with their email and password. Checkout allows anonymous users to place orders without logging in or creating an account. Therefore, options A and D are correct. Option B is false because browse is not a feature that is enabled by creating public groups, it is a feature that is available by default for all users. Option C is false because line level independence is not a feature that is enabled by creating public groups, it is a feature that allows customers to have different shipping and billing addresses for each line item in an order. Reference: [Enable Self-Registration for B2C Stores], Enable Self-Registration for B2C Stores