50 POINTS! Which sentence contains an underlined clause?

My two large dogs happily chased each other around the backyard.
Because of their size, my dogs must be fed three meals daily.
I wash my dogs outside near the garage once every two weeks.
After walking my dogs, I sat down to do my homework assignment.

My two large dogs happily chased each other around the backyard.

Explanation:

on my last

- "the die is cast; i have consented to return if we are not destroyed. thus are my hopes blasted by cowardice and indecision; i come back ignorant and disappointed. it requires more philosophy than i possess to bear this injustice with patience. i have lost my hopes of utility and glory; i have lost my friend."