Which of the following relationships is correct?
a. relative humidity increases: a decrease in temperature without a change in the amount of water vapor in the atmosphere.
b. relative humidity increases: an increase in temperature and a decrease in the amount of water vapor in the atmosphere.
c. relative humidity decreases: a decrease in temperature and an increase in the amount of water vapor in the atmosphere.
d. relative humidity increases: an increase in temperature without a change in the amount of water vapor in the atmosphere.
e. relative humidity decreases: a decrease in temperature without a change in the amount of water vapor in the atmosphere.