Which sentence does not have an error in subject and verb agreement?

a.
don't they have enough money for the tickets?

b.
few of our friends was able to attend the awards banquet.

c.
yes, salt and sugar is often confused when mixing ingredients.

d.
a morning walk or a brisk afternoon run our dog stay trim.

Which sentence has a pronoun in the nominative case? a) we aren't sure if the group is going white-water rafting or not. b) dad refused to give the keys to her because of her disrespectful attitude. c) the radar could not see it because the plane had been covered with radar-resistant paint. d) diana wanted to go out with them, but her mother was resistant because of their reputation.