If m is a positive integer greater than 1, what is the sum of the multiples of m from m to m^2, inclusive?  Select
A) m(m + 1)(m-1)
B) m^2(m + 1)/2
C) m^2(m-1)
D) (x^3 + 2x)/2
E) x(x-1)^2
Ans :- B=m^2(m + 1)/2   I substituted 3 in all answer choices.   Option B and C were both satisfying the condition.   So i substituted 4 instead of 3 in all answer choices,   Only m^2(m + 1)/2 option satisfied.
<result>B</result>
If m is a positive integer greater than 1, what is the sum of the multiples of m from m to m^2, inclusive?