Universal Containers has seven orgs in different regions. Its processes are global and standardized but each region needs the flexibility to be able to understand the global code and customize some aspects for its regions.
Which development model is optimized for this need?

Universal Containers (UC) had been using change sets for deploying all of the modifications to its Sales Cloud apps. After multiple business units joined the single Salesforce instance, there is a need to evaluate which development model is the most suitable for UC. The IT management has shown a particular interest in finding out more about the package development model.
As an architect, which two statements can be made to articulate the differences between the change set model and package development model?
Choose 2 answers

All AppExchange products are subject to Salesforce security reviews.
What is the most common reason that the prospect AppExchange products fail the security review?

Universal Containers CUC) has been on the org development model with scratch orgs are already enabled, but they haven't been taking advantage of the scratch orgs.
Now UC is ready to move to the package development model.
What step must be done by an administrator?

Universal Containers is using Salesforce for their sales organization. The sales users have created several dashboards using multiple running users. The admins have also added a few workflow rules that send email notifications to some sales users.
What should an Architect consider while planning the deployment of such components? (Choose two.)