Problem: OPTIONS:
- nicotine
- exercise
- a chime
- Energy
- A computer
- sweating
- a doorbell
- acetic acid
Q: You are presented with the quiz "What stimulates the central nervous system?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "caffeine is a central nervous system stimulant" and "like caffeine, nicotine is a stimulant". So, what's the best answer to the question?
Answer: nicotine
Problem:OPTIONS:
- supersonic
- spiders
- humans
- Cars
- trains
- ants
- manatees
- skateboards

You are presented with the quiz "what typically travel long distances?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "migrants typically travel long distances" and "manatees are a migrant species". So, what's the best answer to the question?
****
A: manatees
You are presented with the quiz "what causes global warming?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "gases released during the use of fossil fuels causes global warming" and "fossil fuels are coal, oil, and natural gas". So, what's the best answer to the question?
OPTIONS:
- storms
- oil
- cars
- coal
- air
- wind
- carbon
- water
coal
You are presented with the quiz "Biodiversity increases the what of islands?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "biodiversity increases the productivity and stability of ecosystems" and "islands are delicately balanced ecosystems". So, what's the best answer to the question?
OPTIONS:
- water source
- stability
- Plants growth
- our planet
- luminescence
- environment
- human population
- allow growth

Answer: stability
Question: You are presented with the quiz "Water vapor turning from a gas into a liquid causes what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "water vapor condensing in clouds causes rain" and "condensing is a gas turning into a liquid". So, what's the best answer to the question?
OPTIONS:
- sweat
- storms
- Drought
- heat
- cracks
- Hail
- Rain
- Snow
Answer: Rain
input: OPTIONS:
- cigarettes
- insects
- bacteria
- Most plants
- loose soil
- pollen
- mammals
- smallpox Now, answer this question: You are presented with the quiz "What contains DNA but not much else?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "viruses contain DNA but not much else" and "some smallpox viruses are maintained in laboratories". So, what's the best answer to the question?
A:
output:
smallpox