At a Constant Temperature, the Volume ( V ) of a Gas

Multiple Choice

At a constant temperature, the volume ( v ) of a gas varies inversely as the pressure ( W ) . Translate the statement of variation into an equation and use k as the constant of variation.

A) $W = \frac { k } { v }$
B) $v = \frac { k } { W }$
C) $W = k v$
D) $v = \frac { W } { k }$
E) $k = \frac { W } { v }$