The formula to find the $n^{th}$ term of an $A.P.$ is $\ldots \ldots \ldots \ldots .$
- A$T_{n} = a + (n - 1)d$
- B$T_{n} = 2a + (n - 1)d$
- C$T_{n} = \frac{n}{2}(a + l)$
- D$T_{n} = a + (n + 1)d$
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