input: OPTIONS:
- carcinogens
- rivalry
- smoking tobacco
- Heavy rains
- happiness
- treatment
- Pesticides
- high temperature Now, answer this question: You are presented with the quiz "What can cause death?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most carcinogens cause cancer by producing mutations in DNA" and "cancer can cause death". So, what's the best answer to the question?
A:
output: carcinogens

input: OPTIONS:
- Allergies
- lungs
- antigens
- bacteria
- parasites
- atoms
- red blood cells
- acetic acid Now, answer this question: You are presented with the quiz "What are molecules that the defense system recognizes as foreign to the body?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "antigens are molecules that the immune system recognizes as foreign to the body" and "children are born with an immature immune, or defense, system". So, what's the best answer to the question?
A:
output: antigens

input: OPTIONS:
- Oceans rising
- Deforestation
- Greenhouse gasses
- Burning fossil fuels
- Greenhouse gases
- Movement of an air mass
- Leaving lights on
- tectonic plates coliding Now, answer this question: 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 "burning fossil fuels increases the carbon in the atmosphere" and "more carbon in the atmosphere means atmospheric warming". So, what's the best answer to the question?
A:
output:
Burning fossil fuels