Question

the editor’s ＿＿＿＿＿＿ explanations bored students who wanted practical advice instead of endless details.
o demeanor
o pedestrian
o rakish
o pedantic

the instructions were so ＿＿＿＿＿＿ that nobody knew how to complete the assignment.
o ignoble
o nebulous
o nihilism
o fecund

Explanation:

1. For the first sentence, "pedantic" means overly concerned with minor details and rules, which fits the context of students being bored by endless details instead of practical advice. "demeanor" is a person's behavior or manner; "pedestrian" means ordinary or unremarkable in a non - detailed way; "rakish" means stylish and slightly unconventional.
2. For the second sentence, "nebulous" means vague or unclear, which explains why nobody knew how to complete the assignment. "ignoble" means not honorable; "nihilism" is a philosophical concept; "fecund" means fertile or productive.

Answer:

1. D. pedantic
2. B. nebulous