A fair die is tossed repeatedly. A wins ...

A fair die is tossed repeatedly. `A` wins if if is 1 or 2 on two consecutive tosses and `B` wins if it is 3,4,5 or 6 on two consecutive tosses. The probability that `A` wins if the die is tossed indefinitely is `1//3` b. `5//21` c. `1//4` d. `2//5`

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