For which situation would a photographer use a neutral density filter?
A. a photo shoot of a model in a studio for a fashion magazine
B. a photo shoot of a mountain scene in midday
C. a photo shoot of food for a cooking magazine
D. a photo shoot of a swimmer from underwater

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay