PokerStars No-Limit Hold'em, $0.05 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($2.33)
BB ($14.42)
UTG ($1.90)
UTG+1 ($7.09)
MP1 ($10.17)
MP2 ($10)
MP3 ($6.57)
Hero ($9.04)
Button ($4.24)

Preflop: Hero is CO with A, 7.
UTG raises to $0.1, 1 fold, MP1 calls $0.10, 1 fold, MP3 raises to $0.15, Hero calls $0.15, 1 fold, SB calls $0.13, BB calls $0.10, UTG calls $0.05, MP1 calls $0.05.

Flop: ($0.90) 3, 4, A (6 players)
SB checks, BB checks, UTG checks, MP1 bets $0.1, MP3 raises to $0.2, Hero raises to $1, SB folds, BB folds, UTG folds, MP1 calls $0.90, MP3 raises to $1.8, Hero ???

MP3 is 27/9/2 (11 hands)
MP1 is 44/0/0.25 (27 hands)

Is this an obvious straight?