Age Certification

The age certification of my film (opening scene) will be 15. The reasons are;

1. according to my survey result , all members that took part in the survey were 15 and above. Also because all members that took part watch 12A and above films. 
2. because of the frequency of strong language during my film (not necessarily in the opening scene). if it it was as frequent, then i would of considered making it a 12 
3. Also because of the certain situations within the storyline (outer the opening scene). These subjects can be drugs, sex and violence .