The answer is D The saucepan or the stockpot_is_ wide enough for all of the potatoes.
(IS) <span>third person singular present of </span>be which is meaning its happening now
Because it makes a lot more scene if IS is in that sentence
(HAVE BEEN) means it was there but not anymore
(ARE) <span>2nd person singular present and 1st, 2nd, 3rd person plural present of </span><span>be. For an example (Are you there) which does not make any scene for the The saucepan or the stockpot_are_ wide enough for all the potatoes.
(WERE) is like were you there or what are you wereing
So the answer is D. is That is the best answer choice