A) 28 - veintiocho
B) 14 - catorce
C) 12 - doce
D) 19 - diecinueve
C. Prefieren is correct because it is THEY prefer it
A is wrong because preferimos includes you
B is wrong because its not one person if not the question would be El not Ellos
D is wrong because you don't prefer that sport
El pan francés es delicioso tostado con mantequilla.
Hope it helps:)