The correct option is B a + 2d
The consecutive terms of an AP can be found by adding the common difference (d) to every previous term.
If 'a' is the first term and 'd' is the common difference of an AP, then the A.P can be written as :
a, a + d, a + 2d, a + 3d, a + 4d, ...
Here, the 1st term = a, the 2nd term = a + d , the 3rd term = a + 2d and so on.