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

456, 457, 455, 456, 454, 455, 453, ?

Given: 456, 457, 455, 456, 454, 455, 453, ?

Logic: Numbers are increasing - 1 place alternately.

456 - 1 = 455

457 - 1 = 456

455 - 1 = 454

456 - 1 = 455

454 - 1 = 453

455 - 1 = 454

So, the missing term is 454.

Thus, correct option is (a).