

You are a specialist in playing 6-handed No Limit Texas Holdem. The following will be a game scenario and you need to make the optimal decision.

Here is a game summary:

The small blind is 0.5 chips and the big blind is 1 chips. Everyone started with 100 chips.
The player positions involved in this game are UTG, HJ, CO, BTN, SB, BB.
In this hand, your position is BB, and your holding is [Ace of Spade and Three of Club].
Before the flop, SB raise 3.0 chips, BB raise 10.0 chips, and SB call. Assume that all other players that is not mentioned folded.
The flop comes Queen Of Club, Eight Of Club, and Ace Of Club, then SB check, BB bet 4 chips, and SB call.
The turn comes King Of Heart, then SB check, BB bet 31 chips, and SB raise 62 chips.
You currently have Two Pair(Two Pair, Aces and Threes with King kicker).

Now it is your turn to make a move.
To remind you, the current pot size is 121.0 chips, and your holding is [Ace of Spade and Three of Club]. You currently have Two Pair.

Decide on an action based on the strength of your hand on this board, your position, and actions before you. Do not explain your answer.
Your optimal action is: