A box contains 1 gold sock, 3 blue socks, and 30 red socks. As a game, you must grab one sock from the box. If it is gold, you win $20. If it is blue, you win $3. If it is red, you lose $1. What is your expected value of this game?

a) -$1.00

b) $0.06

c) $2.05

d) $0.75

e) $-0.03

f) -$0.50