3/6 flop question

[Percussion]

this seems like a pretty simple situation but I was just wondering

Who raises flop? who 3bets this PF?

If you are raised on the flop, who caps to try to get the free card again?

villian is 15/7 weak tight player


PokerStars 3/6 Hold'em (8 handed) converter

Preflop: Hero is CO with Q[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">UTG+1 raises</font>, <font color="#666666">2 folds</font>, Hero calls, <font color="#666666">3 folds</font>.

Flop: (5.33 SB) 3[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG+1 bets</font>, <font color="#CC3333">Hero ?