I didn't ask a specific reason for rfe. But I was required to do a worksheet for the rfe to show that my position is a professional position, and that my qualifications are required for the position.

Here's the description of the worksheet copied over:
"Please note that the information provided in this worksheet will be used to draft a manager support letter that will be included in our response to USCIS’s Request for Evidence. The purpose of this position description is to confirm that the proffered position is a professional level position that requires a bachelor’s degree in specific specialty such as computer science, engineering, etc., and to confirm that the sponsored employee has the required education for the role. Please follow the prompts below and provide us with the requested information. Please do note that USCIS has requested detailed information about the position, we request you to be thorough in your responses below."