Question

It is important to use subordinate clauses when writing because they demonstrate the style that the writer has decided to use. add suspense to the text. add variety to the sentence structure. form the basis of grammar and punctuation.

Answer 1

The answer is letter B

Answer 2

I'd say the answer is that they 'add variety to the sentence structure'. Because you cannot write independent clauses the whole time, you will have to use a subordinate one at some point, it is inevitable.