A game involves rolling a fair six-sided die. If the number facing upward on the die is a whole number multiple of three, the player wins an amount equal to the number on the die times $20. If the number is not a multiple of three, the player gets nothing. What is the expected value of a player's winnings on each roll? A. $3. 33 B. $6. 66 C. $8. 50 D. $30. 00 E. $40. 0.