Deena has 4 pairs of white socks, 3 pairs of black socks, 1 pair of red socks, and 2 pairs of navy socks in her sock drawer. Each pair of socks is folded together. If she pulls a pair of socks out of her drawer in the morning without looking, what is the probability that she will choose a pair of navy socks?
A)1/5
B)3/5
C)1/4
D)2/3
Deena has a total of 4 + 3 + 1 + 2 = <<4+3+1+2=10>>10 pairs of socks in her drawer.
Since each pair is folded together, there are a total of 10 * 2 = <<10*2=20>>20 socks in her drawer.
Out of these 20 socks, there are a total of 2 pairs of navy socks, so there are 2 * 2 = <<2*2=4>>4 navy socks.
The probability of choosing a pair of navy socks is therefore 4 / 20 = <<4/20=1/5>>1/5.
The answer is A) 1/5.