Answer:
The U.S law will apply
Explanation:
In international trade like this, business operate under the country of Origin rules. This rules dictates that when dispute arises between two companies with different country of origin regarding a product or service, the law that will apply will be the law from where the product or service is originated.
Take a look at this sentence from the excerpt :
Olivetone Inc., a Florida corporation, manufactures and sells suntan product
Since we know that Olivetone is the one that manufacture the product, the product or service is originated from United States. This mean that their dispute will be regulated under the U.S law.