AT vs mini 4bet

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$0.25/$0.5 No-Limit Hold'em (9 handed)

Known players:
[tg]BU$50.23:///////;SB$59.40:///////;BB (Hero)$27.62:///////;UTG1$65.90:///////;UTG2$66.31:///////;MP1$91.26:///////;MP2$19.75:///////;MP3$72.25:///////;CO$21.54:///////;[/tg]

Preflop: Hero is BB with A:d, T:d.
6 folds, BU raises to $1.00, SB folds, Hero raises to $3.00, BU raises to $5.50, Hero calls $2.50.

Flop: ($11.25) 3:h, 5:h, K:h (2 players)
Hero checks, BU bets $4.00, Hero folds, BU gets uncalled bet back.

Final Pot: $11.25.

Oponent

3k hands

12/9
BU 37%
F3bet 55%
4bet 17%

I dont know how to act to min 4bet whit 50bb. call? 5bet? fold?
My plan was call for odds and hit a Tp of a fd. I think that her range was polarizated to QQ+ and random trash.