For some integer $q$, every odd integer is of the form
(A) $q$
(B) $q+1$
(C) $2q$
(D) $2q + 1$

Given :

The given integer is '$q$'.

To do :

We have to find the form of every odd integer for some integer $q$.

Solution :

First few odd integers are $1,3,5,7$

They can be written in the form of $2q+1$ where $q=0,1,2,3$

Therefore, every odd integer is of the form $2q+1$.