Take a look at the pair of sentences, and then look at the combined sentence. Identify what was changed to form the new sentence.

A tiger’s tail has two main characteristics. It is long and flexible.

A tiger’s tail, which is long and flexible, has two main characteristics.

A.
varied sentence beginning

B.
changed one sentence to a clause

C.
changed one sentence to a phrase

D.
combined two independent clauses with a comma and coordinating conjunction