Which of the following explains how the three heat transfers work together to heat the troposphere?

a
The sun heats the ground through conduction. Then, the ground heats the air through radiation. Lastly, convection carries the warm air throughout the troposphere.
b
The sun heats the air through radiation. Then, the warm air is carried throughout the troposphere through convection. Lastly, the air heats the ground through conduction.
c
The sun heats the air through convection. Then, the air heats the ground through radiation. Lastly, the ground spreads the heat throughout the troposphere through conduction.
d
The sun heats the ground through radiation. Then the ground heats the air through conduction. Lastly, convection carries the warm air throughout the troposphere.

d) The sun heats the ground through radiation. Then the ground heats the air through conduction. Lastly, convection carries the warm air throughout the troposphere.