Find an Equation of Variation for the Given Situation $\mathrm { m } = \frac { 1 } { 4 } \mathrm { p }$

Multiple Choice

Find an equation of variation for the given situation.
-m varies directly as p, and m = 20 when p = 5 .

A) m=4 p
B) m=25 p
C) $\mathrm { m } = \frac { 1 } { 4 } \mathrm { p }$
D) m=15 p