If (m-8) is a factor of m^2-pm-24, then p= Choose the correct choice from the following answers.
A) 3  B) 5  C) 6  D) 11  E) 16

Rationale: "( m - 8 ) ( m - a ) = m ^ 2 - pm - 24 a = - 3 p = 8 + a = 5 = b"
Answer: B