input with options: Q: The skeleton of lampreys is made of what? A:
OPTIONS:
- ligament
- collagen
- chitin
- cartilage
output: cartilage

input with options: Q: What do willow trees produce to kill bacteria? A:
OPTIONS:
- facultative acid
- Posion
- bacterial acid
- salicylic acid
output: salicylic acid

input with options: Q: Which common element is the most found in living organisms? A:
OPTIONS:
- hydrogen
- oxygen
- monoxide
- carbon
output: carbon

input with options: Q: What is the name of artificial barriers that people build to protect shorelines? A:
OPTIONS:
- seawalls
- domes
- outcroppings
- breakwaters
output:
breakwaters