The correct answer is A) It has rotational symmetry about the origin.
First of all, let's explain the concept of odd functions. In principle, the graph of an odd function is symmetric with respect to the origin. To test this:
For each
in the domain of
then:
Let's take an example:
The following function:
is odd because:
as follows:
Now a
function has Rotational Symmetry when it still looks the same after a rotation. So let's take two functions, namely:
The graph has been rotated about the origin 180° for each function, so you can see that by doing this the graph is the same.
In conclusion, an odd function is
symmetric with respect to the origin and
has rotational symmetry about the origin.