Concept:An antonym is a word opposite in meaning. "Perish" means to die or be destroyed.Solution:The opposite of dying is continuing to live, which is "survive".Check in the sentence: "The animal will survive under this condition" gives the opposite meaning."Starve" (suffer from lack of food) can lead to death, so it is close to perish, not opposite."Graze" means feed on grass, and "remain" means stay; neither is the opposite of dying.So the opposite of "perish" is "survive".Answer:Option B (survive)