Order the integers {–2, 4, –1, 2, –8} from least to greatest.

A. {4, 2, –1, –2, –8}
B. {–1, –2, 2, 4, –8}
C. {–1, –2, –8, 2, 4}
D. {–8, –2, –1, 2, 4}