QUESTION: Where might someone find a very nice flat?
Options:
- city
- shoes
- apartment building
- town
- london
ME: The answer is london
CoT: London is the largest city of England and have many nice flats to live in..

QUESTION: What is a place where every creature lives?
Options:
- world
- zoo
- dark place
- lake
- woods
ME: The answer is world
CoT: World has all type of creature living on it..

QUESTION: Litter collects where when it's thrown out of a car?
Options:
- ground
- highways
- roadsides
- park
- street corner
ME: The answer is roadsides
CoT: A car is driven on roads. Litter thrown out of car accumulates on the side of road. The sides of road is known as roadside..

QUESTION: Where would a human need to check how much oxygen he or she has?
Options:
- space shuttle
- underwater
- civilisation
- spacecraft
- graveyard
ME:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The answer is spacecraft
CoT: Spacecraft is a vehicle used for travelling in space and as you travel towards higher altitudes oxygen level decreases. In a spacecraft human need to check oxygen levels regularly..