According to Strunk, what is the correct way to place an adverbial clause in this sentence?

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Complete Question

According to Strunk, what is the correct way to place an adverbial clause in this sentence?

a) “While she walked to school, the dog kept barking at Megumi.”

b) “The dog, while she walked to school, kept barking at Megumi.”

c) “The dog kept barking at Megumi while she walked to school.”

c) "The dog kept barking at Megumi while she walked to school."

Explanation:

An adverbial clause is a clause that acts like an adverb in a sentence. An adverbial clause performs the following functions in a sentence.

a) It modifies a verb in a sentence

b) It modifies an adjective in a sentence.

c) It can also modify an adverb found in a sentence as well.

An adverbial clause functions in a sentence by answering the questions based on why(the reason), when(the time) or where(the place) an action takes place.

It is important to note that an adverbial clause can't stand on its own and this is because it is a dependent clause.

In the question above, the correct way to place an adverbial clause in this sentence is Option c = "The dog kept barking at Megumi while she walked to school.

by creating a labor shortage that pushed the continent toward a market economy

the term is einsatzgruppen