Since we had nothing else to do, we decided to go...

Câu hỏi: Since we had nothing else to do, we decided to go for a walk.

A Have nothing else to do, we decided to go for a walk.

B Since having nothing else to do, we decided to go for a walk.

C Having nothing else to do, we decided to go for a walk.

D Because having nothing else to do, we decided to go for a walk.