

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 [Eight of Heart and Eight of Diamond].
Before the flop, CO raise 2.3 chips, and BB call. Assume that all other players that is not mentioned folded.
The flop comes Ten Of Diamond, Six Of Heart, and Four Of Heart, then BB check, and CO check.
The turn comes King Of Heart, then BB check.
You currently have Three of a Kind(Three of a Kind, Eights with K and T kickers).

Now it is your turn to make a move.
To remind you, the current pot size is 5.0 chips, and your holding is [Eight of Heart and Eight of Diamond]. You currently have Three of a Kind.

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: