Clay was a leading supporter in foreign policy and was very much for it.
He was a big supporter of independence movements and revolutions in Latin America and equally supported the Greek revolution.
The answer would be Greece (a)
It is specifically focused on an argument which defines your goal and the scope of the thesis. Its main purpose is to support and prove your main argument. It's like a person arguing to prove his position which means he is making a claim. If written effectively, a claim statement will keep your readers interested.
Officers must respect the rights of citizens at all times