I think it's a pun (basically a joke that is related to a specific word, like its meaning or sound) - because it's wordplay about light vs heavy
Some themes you might consider in the play include:
Greed
Power and ambition
What it means to be masculine and feminine
Trying to persuade
Idealism
What it means to be a (good/bad) leader
The importance of omens
The difference between villains and heroes
Is D, the setting is the time, place and social environment in the story
Answer:
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
