Read the following text and and answer the following questions on the basis of the same :
In the school project Sheetal was asked to construct a triangle and name it as ABC. Two angles A and B were given to equal to `tan^(-1)""(1)/(2)` and `tan^(-1)""(1)/(3)` respectively.

The third angle `angleC=`

Options

A. `(pi)/(4)`
B. `(pi)/(2)`
C. `(pi)/(3)`
D. `(3pi)/(4)`

Answer

D