difference between carries and possess

Question

Am I to understand that his new post _______ no responsibility with it at all?

Which answer fits the blank best? Carries or possesses?

And for what reason? Idiom or grammar?

Answer 1

In formal English responsibilities are generally borne.

The verb to bear means:

to carry the weight of; support (Lexico)

In your sentence, "carries" is preferable, being the closest to "bears".

Answer 2

As verbs the difference between carry and possess is that carry is (lb) to lift (something) and take it to another place; to transport (something) by lifting while possess is to have; to have ownership of. Source

So best to use is "carries", as you usually "carry responsibility", not so much of "possessing responsibility". Think of responsibility as something you have to "hold up":

responsibility = heavy load

You have to carry that heavy load