Which explanation is based on empirical evidence?

The jellyfish population is conquering the ocean. Jellyfish can lay up to 40,000 which causes fish populations to decrease, which means less fish for fishermen. Jellyfish are causing fishermen to capture less fish get stung. Schools are beginning to make candy out of jellyfish and sell it for money, so they can buy new nets for the fishermen. Why did they not talk about getting painful stings from the jellyfish?

hope it helps :)