What would the US do if Iran sank an aircraft carrier and killed 2,000 sailors?

What would the US do if Iran sank an aircraft carrier and killed 2,000 sailors?

They told US they were going to shoot one towards one of our AC's and where it would go. It went where they said it would. So, they can now hit any US ship they want to.

I think this would be a mistake by Iran because Americans are against war and this could get Americans to support the war and help Republicans in the elections. I also think Trump wouldn't mind one of the ships being sunk.

If they sink ship and 2000 sailors die, US uses Nukes
If they hit US Ship and 2000 sailors die , US invades Iran
If they hit and sink US ship and 2000 sailors die, US just keeps doing what they are doing now
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What would the US do if Iran sank an aircraft carrier and killed 2,000 sailors?
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