What is the linking verb in New Orleans cornetist Charles Bolden was a pioneer in the world of jazz music, according to many music historians.

Was

Explanation:

A linking verb is a type of verb that identifies a subject in a sentence and connects it to an adjective or noun.

Furthermore, unlike other types of verbs, they do not describe any direct action taken.

Therefore, the linking verb in "New Orleans cornetist Charles Bolden was a pioneer in the world of jazz music, according to many music historians." is WAS

a hue is a character or aspect.

since it is asking for her reaction to elnora's trouble at school you can rule out any answers with a positive response (b). then you can rule out (d), this is because it does not show the mother's reaction but the daughter's response. that leaves you with two options (a) and (c), by looking at the options you can rule out (c) because it isn't referring back to elnora's issues at school.