[GAMEPLAY] SONA HAS MORE AD

I'm not sure how my Sona has more AD then AP early game (even before buying items). I checked through my runes and masteries, and i'm very much sure i did not include any AD boosts. I fear it may be a bug and due to this i face a lot of challenge supporting early game. I notice her AD is always higher than her AP every time in game, even before i get any items. *early game [ AD = 50 ; AP = 15] I hope you guys can help and take a look where i did wrong, but i asked my friends and they didnt even know what made up for the AD boost. I would really love to play Sona AP based. Thank you in advance.

I'm sorry but i could not include any screenshots. Everytime i do i only get a blank black screen.