What should come in place of the question mark (?) in the given series?

45, 45, 46, 50, 59, ?

Given: 45, 45, 46, 50, 59, ?

Logic: Difference is increasing perfect square of whole number.

45 + 0²= 45 + 0 = 45

45 + 1²= 45 + 1 = 46

​46 + 2²= 46 + 4 = 50

50 + 3²= 50 + 9 = 59

59 + 4²= 59 + 16 = 75

So, the missing term is 75.

Thus, correct option is (d).