Q23. What is an Apex class in Salesforce?
a) It is a type of object that is used to store data in the Salesforce database.
b) It is a piece of code that is executed by the Salesforce server to perform certain tasks.
c) It is a user interface element used to display data to users.
d) It is a file that is uploaded to Salesforce and can be referenced in code, such as a JavaScript or CSS file.
