In a Certain Town, 22% of Voters Favor a Given $3.6$

Multiple Choice

In a certain town, 22% of voters favor a given ballot measure. For groups of 21 voters, find the variance for the number who favor the measure.

A) $3.6$ $\text { voters } ^2$
B) 13 $\text { voters } ^2$
C) $1.9$ $\text { voters } ^2$
D) $4.6$ $\text { voters } ^2$