Please answer the following question: You are presented with the question "Phytoplankton use what to make food?" and the following answer choices: - sun's heat - sunlight beams - refraction of light - heat energy - visible energy - by indirect light - produce light - Positive charges Now knowing that phytoplankton are bacteria and algae that use sunlight to make food and sunlight beams down on the different types of algae, choose the best answer.
A:
sunlight beams