As South, second seat favorable vulnerability, you hold:
95
AJ10976
A102
AK.
East deals and passes. And you?
1
1NT
Other
Partner raises to 2, East doubles and you buy it in 4 as shown:
The 9 is led to East's J (marking him with KQJ).
Let's say you win the A. You need to get to dummy for the heart finesse.
You play a low spade and West plays low.
What do you play from dummy?
K
J