input: OPTIONS:
- acetic acid
- Hemoglobin
- Fructose
- barnacles
- animals
- Estrogen
- Pesticides
- Baby spray Now, answer this question: You are presented with the quiz "Which chemical controls sexual development and reproduction in females?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sex hormones are chemical messengers that control sexual development and reproduction" and "estrogens are female sex hormones". So, what's the best answer to the question?
A:
output: Estrogen

input: OPTIONS:
- mechanical
- negative
- helpful
- wind
- healthy
- forces
- positive
- flooding Now, answer this question: You are presented with the quiz "Erosion of soil has what impact on a forest?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "erosion of soil has a negative impact on the environment" and "forests provide a clean and comfortable environment". So, what's the best answer to the question?
A:
output: negative

input: OPTIONS:
- humans
- clouds
- rabbit
- bears
- animals
- the sun
- insects
- goats Now, answer this question: You are presented with the quiz "what generates heat mainly by keeping their metabolic rate high?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mammals generate heat mainly by keeping their metabolic rate high" and "all humans are mammals". So, what's the best answer to the question?
A:
output:
humans