What are you a part of if you hear a bugle in the mornings?\nOptions:\n- american army\n- boys scout\n- military band\n- brass band\n- army corps
Let's think step by step below.
army corps
Army corps is a military organisation.

Army corps has military officers.

Bugle is used in a military base.

Army corps are present in a military base.

.

The answer: army corps