Jellyfish compete with anchovies for plankton and are preyed upon by tuba and swordfish. Which change might benefit jellyfish?

Options:
Increase in anchovies
Increase in swordfish
Increase in plankton
Increase in tuna

An increase in plankton would benefit jellyfish. As jellyfish compete with anchovies for plankton, an increase in the plankton population would provide more food for the jellyfish, allowing them to thrive and increase their population.