How did Impressionism get its name?

A. It was the winning entry in a contest to name the new movement.
B. One of the artists of the group invented the name to describe her own painting process, and the rest of the group adopted it.
C. The group appropriated the name from the title of a recent scientific essay concerning optics and human perception.
D. A critic used the term to describe the movement after seeing the painting Impression: Sunrise, and it caught on.
E. The group took its name from the title of a current photography journal.

D
The critic titled his review "The Impressionists," and the artists themselves largely accepted the name.