In which sentence is the predicate nominative correct?

a. the last football captain was him.

b. the friendly florist is her.

c. that is carly and them on the roller coaster.

d. the best surfers are mike and she.

Can anyone plz with this question i accidentally posted on physics it's 99 points plus this 5 ponts and will mark as brainliest link :

Buck did not cry out. he did not check himself, but drove in upon spitz, shoulder to shoulder, so hard that he missed the throat. they rolled over and over in the powdery snow. spitz gained his feet almost as though he had not been overthrown, slashing buck down the shoulder and leaping clear. twice his teeth clipped together, like the steel jaws of a trap, as he backed away for better footing, with lean and lifting lips that writhed and snarled. read this passage. explain what the conflict shows about buck and spitz.

Which is these is not a benefit of parallel structure? a)clarity b)classification c)emphasis d)balance