I expect that our preferred move will not be to respond with force but to further tighten the sanctions regime. For now, the center of gravity is not the Persian Gulf but the willingness of the Europeans to back our efforts against Iran.
We have coalition allies.
I would hope to give Iran a dose of their own medicine in the form of an untraceable covert destruction within the Iranian borders. The covert act would be conducted by coalition forces always present in Iran.