Answer
[K Hearts, K Diamonds, Q Hearts, Q Diamonds, J Hearts, J Diamonds]
Work Step by Step
In a standard deck, there are $26$ red cards in total.
However, this question is only asking for the red "face" cards. These can either be Jacks, Queens, or Kings.
In a standard deck, there are $12$ of these face cards, half of which are red and half of which are black.
So that means there are 6 red face cards, half of which are diamonds, and half of which are hearts.
So the sample space in this case would be:
[K Hearts, K Diamonds, Q Hearts, Q Diamonds, J Hearts, J Diamonds]
