Answer:
B, C and D.
Explanation:
It's easy to know when a function is odd or even.
If the function has endpoints pointing to the same direction, then that function is even.
If the function has edpoints pointing to difference direction, then that function is odd.
In this case, function A has endpoints in the same direction, so that function is even.
However, functions B, C and D have endpoints in difference direction, that means they are odd functions.
Therefore, the odd functions are B, C and D.