You are playing a game where you are rolling a fair 6-sided number cube. It costs $1.00 for every roll. If you roll an even number, you win $3.00. If you roll an odd number, you win nothing. Which of the following is the expected value of this game?

Aexpected value= $-0.50

Bexpected value= $0.50

Cexpected value= $1.00

Dexpected value= $-1.00