The parabola opens towards left, this means the squared term is y with negative coefficient.
The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:
[tex]x=-a(y+1)^{2}-3 [/tex]
where a is any constant.
In the given options, only 1 such equation is available and that is option C.
So the answer to this question is option C
