Grandma Moses is among the most famous twentieth-century painters of the United States， yet she had only just begun painting in her late seventies. As she once said of herself： “I would never sit back in a rocking-chair， waiting for someone to help me.”.She was born on a farm in New York State. At twelve she left home and was in a service until at twenty-seven， she married Thomas Moses， the tenant(租户) of hers. They farmed most of their lives. She had ten children， of whom five survived; her husband died in 1928.　　Grandma Moses painted a little as a child and made embroidery(刺绣) pictures as a hobby， but only changed to oils in old age because her hands had become too stiff (僵硬)to sew and she wanted to keep busy and pass the time. Her pictures were first sold at an exhibition， and were soon noticed by a businessman who bought everything she painted. Three of the pictures were shown in the Museum of Modern Art， and in 1940 she had her first exhibition in New York. Between the 1930’s and her death she produced some 2，000 pictures： careful and lively pictures of the country life she had known，with a wonderful sense of color and form(带有奇妙的色彩和形式感).Which of the following would be the best title for the passage?
选项：

A: Grandma Moses
B: The Children of Grandma Moses
C: Grandma Moses： Her Best Pictures
D: Grandma Moses and Her First Exhibition