I will give brainliest!!!!!!!! Nucleoside reverse transcriptase inhibitors (NRTIs) are a class of drugs used to treat human immunodeficiency virus (HIV). Unfortunately, a major side effect of these drugs causes people to get tired very easily, often due to a lack of energy. Which of the following choices would be the best explanation as to the cause of this drug's side effect? Choose 1 answer: (Choice A) A The drug may be toxic to lysosomes, organelles that enzymatically break down cellular wastes. (Choice B) B The drug may be toxic to the Golgi body, an organelle that receives, modifies, and transports cellular materials. (Choice C) C The drug may be toxic to the endoplasmic reticulum (ER), an organelle that provides a source of energy (ATP) for the cell. (Choice D) D The drug may be toxic to mitochondria, organelles that provide a source of energy (ATP) for the cell.