

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 CO, and your holding is [Queen of Diamond and Eight of Diamond].
Before the flop, CO raise 2.3 chips, and BTN call. Assume that all other players that is not mentioned folded.
The flop comes Queen Of Club, Ace Of Diamond, and King Of Heart, then CO bet 5 chips, BTN raise 16 chips, and CO call.
The turn comes Three Of Diamond, then CO check, and BTN bet 29 chips.
You currently have Two Pair(Two Pair, Queens and Eights with Ace kicker).

Now it is your turn to make a move.
To remind you, the current pot size is 67.0 chips, and your holding is [Queen of Diamond and Eight of Diamond]. 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: