The correct answer is A) Standing committees are permanent and select committees are temporary to investigate a specific issue.
The MAIN difference between a standing committee and a select committee in Congress is "Standing committees are permanent and select committees are temporary to investigate a specific issue."
The standing committee in Congress is permanent and is established by the House of Representatives and the Senate to debate bills, solve issues and recommend solutions that are going to be considered by the chambers. On the other hand, Selective committees are designed to attend or solve a problem or an issue that is beyond the capacity of a standing committee. That is why is not permanent.