Which sentence has an incorrect compound noun?
a) a new highschool is being built near the town hall.
b) fans of football and baseball are happy about the large field for sports.
c)the vice president of penny pincher bank will dedicate the field.
d)playing sports can build self-respect and improve teamwork.

C, i think, "The vice president of Penny Pincher Bank will dedicate the field. " just doesn't make sense, grammatically. oh, and, if this helps, here's the actual definition of a compound noun:"a compound noun is a construction made up of two or more nouns that function as a single noun. Also called a nominal compound."