Girl child feels isolated and cries alone intermittently in school

Girl child feels isolated and cries alone intermittently in school…teacher gets to know that uncle at home touches private parts of the child
The principal should inform???
A. Parents
B. Police

I changed answer to parents…thinking thats the most practical thing done in reality in India

so what should be the answer?
Considering we will never know whether the option i marked was ryt or wrong…since these idiots never release answer key

If you tell parents & the mother /father for the sake of society , relationship , compulsions etc ( god forbid ) may not escalate the issue and find the solution so i think in an ideal case scenario it should be CWC

Options
C- magistrate
D- child welfare society.

I thinkit should be child welfare committee.
Parents will warn the uncle and leave it there, and will try to supress the heinous crime. Police will need the parents support to carry on with the FIR and everything as the child is too young which they (the parents) may avoid. The only reliable source is child welfare committee.