Question

Hello everyone.
This is my very first question.
It's about the concept questions in Chapter7: Concept of Force.
Question n°3. The answer that i've made was answer2 . Yet, in the solutions it was answer1 and the explanation says -as i've understood- that it's answer1.
So, is it a typing mistake or a missunderstanding by me ?
and if that is the case could any one explain things far more.
And, thank you.

Answer 1

I think you are correct. The answer should be 2 as these are all accelerations. In the answer key they also made another typo and called acceleration E when it should be D

Answer 2

Yes, i've noticed that.
Thank you.