Which of the following places would you expect to have the warmest climate?

location a with an altitude of 10,000 feet
location b with an altitude of 5,000 feet
location c with an altitude of 500 feet
location d with an altitude of 10 feet

which of the following places would you expect to have the coldest climate?

a place that is very close to the poles
a place that is very close to the equator
a place that is near the equator
a place that is between the poles and equator