* Option A: The fire() method is used to publish Aura application events in the traditional publish- subscribe model.
* Not Suitable:
* Option B: sendEvent() is not a valid method for Aura events.
* Option C: FireEvent() does not exist.
* Option D: emit() is not part of the Aura event framework.

* Option A: This is the correct syntax for SOSL to retrieve data across multiple objects. It searches for
"Universal Containers" in the CompanyName fields and returns the specified fields for Lead, Account, and Contact.
* Other Options:
* Option B and D: These are invalid SOQL statements since SOQL does not support multi-object queries.
* Option C: Name fields are not relevant to the search term "CompanyName."

The with sharing keyword ensures that the Apex class respects the sharing rules of the current user, including private sharing models. This means the logged-in user will only see records they own or have been shared with them.

A master-detail relationship from Engineering_Support__c to Opportunity allows multiple child Engineering_Support__c records to be associated with a single parent Opportunity. It also enables roll-up summary fields to aggregate data from the child records onto the parent Opportunity.

In Apex, a class can extend a virtual class (similar to abstract classes in Java) by using the extends keyword.
This allows the subclass (CustomerOrder) to inherit properties and methods from the parent virtual class (OrderRequest).