Answer the following question: Fact 1: Agreenhouse is used to protect plants by keeping them warm. Fact 2: Warm temperatures have helped plant growth and sizing. Given the two facts above, a greenhouse helps ?

OPTIONS: a. climate; b. plant growth; c. Quality of life; d. consumers; e. genetic diversity; f. flow of electrons; g. important habitats; h. heat energy;
Answer:
b.