D. is wrong. It should be "One hero in the animation field is Mel Blanc, the voice behind many cartoon characters." because the information after Mel Blanc is not necessary to the sentence. It's just extra, so you need a comma.
Answer:
In the Introduction
The thesis will be at the end of the introduction because the other sentence introduce/bring up the thesis.
The thesis is the main point/message of the passage.
Answer:
She lives around the Equator
Explanation:
The places at or around the Equator of the Earth do not experience cold weather, instead, they have warm weather like summer all year round. This is due to the Earth's axial tilt causing the equator to be closer to the Sun than places above or below the Equator.