A develop completed modification to a customized feature that is comprised of two elements: Apex trigger Trigger handler Apex class What are two factors that the developer must take into account to…

Salesforce requires that Apex classes have at least 75% code coverage by test methods to be deployed to a production environment, and this generally contributes to the overall org-wide coverage.

Although Apex triggers do not require 75% code coverage, they must have at least one line of code executed by a test method to be successfully deployed to production.

Not all methods within a test class must use the `@isTest` annotation; only the class itself needs it, or individual methods can be marked `testMethod` if the class is not annotated.

Test methods can be declared with the `testMethod` keyword, but they can also simply be public static methods within a class annotated with `@isTest`.