How long should our answers be?

Hello all, I am doing mocks and kind of worried regarding how long our answers should be. For example: On a 4 minute question where we have to “discuss” the answer => the correction from the CFAI has 2 big paragraphs. I mean in 4 minutes I don’t know how we could possibly write some much while also having to read and understand the question. Is the correction purposely longer to clearly explain the solution but we won’t have to go to such extend? Thank you