What is the optimal way for a developer to get the total number of Opportunities for the Lightning Component?

Part of a custom Lightning Component displays the total number of Opportunities in the org, which is in the millions. The Lightning Component uses an Apex Controller to get the data it needs .

What is the optimal way for a developer to get the total number of Opportunities for the Lightning Component?
A . SUM() SOQL aggregate query on the Opportunity object
B . SOQL for loop that counts the number of Opportunities records
C . COUNT() SOQL aggregate query on the Opportunity object
D . Apex Batch job that counts the number of Opportunity records

View Answer

Answer: C