

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 SB, and your holding is [Ten of Heart and Nine of Spade].
Before the flop, SB raise 3.0 chips, and BB call. Assume that all other players that is not mentioned folded.
The flop comes Nine Of Diamond, Ten Of Spade, and Eight Of Spade, then SB check, BB bet 2 chips, and SB call.
The turn comes Five Of Diamond, then SB check, and BB bet 8 chips.
You currently have Two Pair(Two Pair, Tens and Nines with Eight kicker).

Now it is your turn to make a move.
To remind you, the current pot size is 18.0 chips, and your holding is [Ten of Heart and Nine of Spade]. 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: