My answer is P. But I am not sure as there is not sufficient data to support this.
B(2), ____, G(7), ____, L(12), _____ (alternating sequence of difference 5: 2, 7, 12, 17,...)
____, D(4), ____, J(10), ____, P(16) (alternating sequence of difference 6: 4, 10, 16, ...)
Is this correct answer? Or can someone come up with different answer with better logic?