[1] i am interested in history. [2] i decided to read the declaration of independence.

which is the best way to revise sentences 1 and 2 to create sentence variety?

Explanation:

The sentence variety we can easily form it just using connectors, which give the sense. For example, in this case we made a cause-effect variation.

i'm pretty sure i had this question the other day and b was the right answer.

remember, the goal of an adjective clause is to add more information to a noun or a pronoun. as you can see from the examples above, you can add information by including a longer adjective clause or tighten up a sentence by turning the adjective clause into an adjective phrase.