In an organization that has multi-currency enabled, a developer is tasked with building a Lighting Component that displays the top ten Opportunities most recently access by the logged in user. The developer must ensure the Amount and LastModifiedDate field values are displayed according to the user's locale.
What is the most effective approach to ensure values displayed respect the users locale settings?

Refer to the code snippet below:

When a Lightning web component is rendered, a list of opportunity that match certain criteria should be retrieved from the database and displayed to the end-user.
Which three considerations must the developer implement to make the fetchOpps method available within the Lightning web component?

As part of their quoting and ordering process, a company needs to send PDFs to their document storage system's REST endpoint that supports OAuth 2.0. Each Salesforce user must be individually authenticated with the document storage system to send the PDF.
What is the optimal way for a developer to implement the authentication to the REST endpoint?

What is the best practice to initialize a Visualforce page in a test class?

A developer has requirement to query three fields (id, name, Type) from an Account and first and last names for all Contacts associated with the Account.
Which option is the preferred optimized method to achieve this for the Account named 'Ozene Electronics'?