A、Because he was able to make big profits out of his work. B、Because he thought he was working like a garage mechanic. C、Because

Andrew Warhol was born in 1928 in Pittsburgh, Pennsylvania. He studied at the Carnegie Institute of Technology. By 1950, Andy Warhol, as he now called himself, moved to New York City and pursued a successful career as s commercial designer and illustrator.
    In the 1960s, Warhol became one of the leaders of .the pop art movement. Taking its name from "popular", this art used images in popular culture for its subject matter. Probably one of Warhol’s most famous images is called Campbell’s Soup Can -- a picture of a brand of soup popular in the U. S.. Other famous works are Green Coca-Cola Bottles and the three-dimensional Brillo Box, which looks exactly like the box of soap pads sold in the supermarket.
    Now, Warhol also wanted to simplify the process of making art, so he silk-screened photographs onto painted canvas.  He created very striking, brightly colored portraits of celebrities. The most famous are of Marilyn Monroe, Elizabeth Taylor, and Elvis Presley. To make his art look even more mechanical, he would repeat many images of the same thing on the canvas, sometimes just changing the color or a few little details. He even named the place where he produced his art "The Factory".
    And Warhol was also a film-maker and a publisher. His magazine called Interview was filled with articles and gossip about celebrities. With his trademark bushy white hair and his association with celebrities, this man who seemed somewhat shy was always in the public eye. It seems that the more fun he made of art and fame, the more famous Andy Warhol became. He died in 1987 and is the subject of the largest museum devoted to a single artist: The Andy Warhol Museum in Pittsburgh, his hometown.