In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Rotating part of dc motor is known as?
armature

Where does the ultimate power reside in a democracy?
the citizen body

What is the meaning of d in cameras?

digital