Answer:
It is important to use different sentece structures in writing because a. it enhances the writing.
Step-by-step explanation:
If a writer uses too many simple sentences, for example, the reader can find the text choppy, and if he uses too many compound-complex sentence, the text would be hard to follow. Therefore, varying sentence structure is important because readers can follow the text more easily without finding it too basic. Using different sentence structures enhances the writing.