In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

[EX Q]: Fact1: global warming is when worldwide temperature increases, Fact2: Mass extinction occurs in the ice age and global warming periods., Question: When worldwide temperature increases, mass what occurs? (A) extinction (B) deforestation (C) carbon (D) ice age (E) living (F) movement (G) It decreases (H) Pollution
[EX A]: A

[EX Q]: Fact1: Puberty is the period during which humans become sexually mature., Fact2: Before puberty, adolescents experience their highest nutritional demand since infancy., Question: When do adolescents experience their highest nutritional demand since infancy? (A) carrying offspring to birth (B) occurs over a wide range (C) it increases (D) It's inherited from genes (E) Before sexual maturity (F) 70-75 degrees Fahrenheit (G) dermal & vascular tissue (H) Two or more sets of alleles
[EX A]: E

[EX Q]: Fact1: Male dogs use pheromones in urine to mark their territory., Fact2: Generally, pheromones are volatile substances., Question: Male dogs use what in their urine to mark their territory? (A) hydrocarbons (B) volatile substances (C) kinetic energy (D) an area swollen with pus (E) Chemical energy (F) competing for resources (G) add a solute (H) Positive charges
[EX A]:
B