input: OPTIONS:
- sperm
- mechanical
- barnacles
- the penis
- the moon
- testosterone
- Chemical energy
- competition Now, answer this question: You are presented with the quiz "What stimulates the reproductive organs to develop testicles?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "testosterone stimulates the reproductive organs to develop into male organs" and "testicles are male reproductive organs". So, what's the best answer to the question?
A:
output: testosterone

input: OPTIONS:
- Conifers
- flowers
- apples
- plants
- amoeba
- Trees
- Oak
- Spruce Now, answer this question: You are presented with the quiz "All of what have a characteristic life cycle that includes alternation of descendants?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "all plants have a characteristic life cycle that includes alternation of generations" and "descendant includes descendants of all generations". So, what's the best answer to the question?
A:
output: plants

input: OPTIONS:
- Wi-Fi
- photons
- antennae
- energy
- Heart rate
- fire
- layers of fat
- electricity Now, answer this question: You are presented with the quiz "What is used as an energy source by pagers?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "electricity is used as an energy source by electrical devices" and "devices such as pagers and cell phones are forbidden". So, what's the best answer to the question?
A:
output:
electricity