Which method refers to the rendering technique where a low-resolution texture is used at long range and a high-resolution texture is used at close range?

Which method refers to the rendering technique where a low-resolution texture is used at
long range and a high-resolution texture is used at close range?

A.
Nearest-point filtering

B.
Anisotropic filtering

C.
Mipmapping

D.
Texture atlas

Explanation:
http://msdn.microsoft.com/en-us/library/ms892793.aspx