OPT: I. sunlight. II. freezing rain. III. water floods. IV. soft voices. V. food supply. VI. Energy.. VII. salt and water.. VIII. direct energy.
Given those answer options, answer the question: Fact 1: Aplant requires nutrients to grow. Fact 2: Nutrient density is the nutrient to calorie ratio of the food supply. Given the two facts above, a plant requires what to grow?
A:
V.