Question

We collected shells. We wanted to use them to make a necklace.

Revise the sentences by adding a subordinate clause.

A. We collected shells; we wanted to use them to make a necklace.
B. We collected shells, and we used them to make a necklace.
C. We collected shells; then, we used them to make a necklace.
D. We collected shells because we wanted to use them to make a necklace.

Answer 1

D. We collected shells because we wanted to use them to make a necklace.

Answer 2

The answer to your question would be that the sentence that joins the two sentences correctly by adding a subordinate clause is the following one: We collected shells because we wanted to use them to make a necklace. That is, the correct option would be D.

In this case, the subordinate clause introduced by the subordinating conjunction "because" introduces the reason why they collected the shells.