HELP!! Using modern technology, scientists have found evidence that the average annual temperature of Earth is increasing. However, the amount of energy that the Sun emits has remained nearly constant. Scientists propose that greenhouse gases in the atmosphere of Earth partly explain the increase in temperature.

Why is the temperature of Earth increasing if the amount of energy the Sun releases is relatively constant?
Answer options with 4 options
A.
The light energy from stars in other galaxies is converted to nuclear energy.
B.
The kinetic energy that comes from the Sun is making molecules move faster.
C.
The energy that was previously released to space is now reflected back to Earth by the atmosphere.
D.
The energy from other stars in the Milky Way galaxy is converted to thermal energy in the atmosphere of Earth.