[单选题]
If the diameter of a r(*2y uz* ee(*kvuzg*hlzd2yladar dish is doubled, wha*u+:u qb3 hwsot happens to its resolving power assuming that all other factors remain unchanged? Its resolving poweruwhuos* b3q+:
A. quadruples.
B. doubles.
C. halves.
D. is reduced to one-quarter its original value.