* @InvocableMethod Requirements:
* Must be declared as public static.
* Must accept and return a List to support batch operations.
* Return type should be compatible with Flow Builder, in this case, a List<ContactInfo>.
* Why Option C?
* Fulfills all @InvocableMethod requirements:
@InvocableMethod(label='Additional Info')
public static List<ContactInfo> getInfo(List<Id> contactIds) {
// Implementation
}
* Why Not Other Options?
* A, B, D: Do not adhere to the public static requirement or fail to use a List as input/output.
* InvocableMethod Documentation: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta
/apexcode/apex_classes_annotation_InvocableMethod.htm
References:

Maximum Trigger Depth Exceeded:
This error occurs when a trigger causes recursive calls, leading to an infinite loop of execution.
Solution:
Use static variables in helper classes to prevent recursive trigger execution.
Example:
public class TriggerHelper {
public static Boolean isTriggerExecuted = false;
}
trigger AccountTrigger on Account (after update) {
if (!TriggerHelper.isTriggerExecuted) {
TriggerHelper.isTriggerExecuted = true;
// Trigger logic here
}
}
Why Not Other Options?
A: Permissions do not affect trigger recursion.
B: Length of the trigger is unrelated to recursion.
C: Code coverage does not influence runtime errors like recursion.
References:Trigger Best Practices:https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode
/apex_triggers_best_practices.htm

* Why Developer Console?
* TheDeveloper Consoleprovides tools to troubleshoot query performance, including the Query Plan tool.
* The Query Plan tool evaluates SOQL query performance and provides insight into query costs and optimization.
* Why Not Other Options?
* A. Setup Menu: Used for administrative tasks, not performance troubleshooting.
* B. Visual Studio Code IDE: Useful for development, but does not offer query performance tools.
* C. AppExchange: Provides apps but does not directly help with query troubleshooting.
References:Query Plan Tool:https://developer.salesforce.com/docs/atlas.en-us.220.0.salesforce_console.meta/salesforce_console/salesforce_console_query_plan.htm