A fair die is thrown n times. The probability of getting an odd number twice is equal to that getting an even number thrice. The probability of getting an odd number, odd number of times is

(1) $1\over3$

(2) $1\over6$

(3) $1\over2$

(4) $1\over8$

(1) $1\over3$

(2) $1\over6$

(3) $1\over2$

(4) $1\over8$