[Closed] 2$ non-turbo STT A50 str8 on the river

Is it ok to check the turn?

Hand converted with online PokerStrategy.com hand converter:

Play hand

$40/$80 No-Limit Hold'em (5 handed)

Known players:
[tg]BB (Hero)$1610.00:///////;MP3$1570.00:///////;CO$5243.00:///////;BU$2957.00:///////;SB$2120.00:///////;[/tg]

Preflop: Hero is BB with A:c, 5:d.
MP3 folds, CO calls $80.00, BU calls $80.00, SB folds, Hero checks.

Flop: ($280) 4:s, 3:d, 7:d (3 players)
Hero checks, CO checks, BU checks.

Turn: ($280) K:c (3 players)
Hero checks, CO checks, BU checks.

River: ($280) 6:d (3 players)
Hero checks, CO checks, BU checks.

Final Pot: $280.

Results follow:

Hero shows a straight, seven high(Ac 5d).
BU shows high card ace(Ad Qc).
CO shows a pair of kings(8s Ks).

Hero wins with a straight, seven high(Ac 5d).