It's because the apostrophe takes place of the missing letter.
it is to it's
The Ashcan School, or also called the Ash Can School, was a group of artists that often depicted gritty New York City life. Correct answer: C Ashcan School artists were interested in new modes of seeing and being seen in modern New York City: people walking in parks, prostitutes on the street, artificial lights in boxing arenas. They rejected skillful, finished drawing and the ability to render the outward appearance of people and things and instead celebrated personal vision.
Answer: Organ systems work together, too
Explanation:
For example, the respiratory system and the circulatory system work closely together to deliver oxygen to cells produce...The lungs expel the carbon dioxide and bring in new oxygen containing air.
Answer: because it is the best thing to do and it is why people always choose it before any thing else because it leaves respect to other peo0le to give respect to you and others