A fair coin is tossed, and a marble is chosen from the bag whose contents are shown below. 3 red marbles, 3 blue marbles, and 4 green marbles. What is the probability of the coin landing heads up and a blue (B) marble being randomly selected? StartFraction 3 over 20 EndFraction StartFraction 1 over 6 EndFraction StartFraction 4 over 5 EndFraction StartFraction 5 over 6 EndFraction