If four coins are tossed, the probability of getting two heads and two tails is -.	Choose the correct choice from the following choices:
A) 3/8
B) 4/5
C) 3/7
D) 2/9
E) 1/7
n(E) = six ways   p(E) = 6/2^4 = 3/8   3/8NSWER 3/8
<result>A</result>
If four coins are tossed, the probability of getting two heads and two tails is -.