As the Sun Evolves into a Red Giant in the Distant

Multiple Choice

As the Sun evolves into a red giant in the distant future, then according to Wien's Law:

A) most of its energy must become shorter in wavelength.
B) its peak on the Planck curve will move into the infrared.
C) its total luminosity must decrease.
D) it will disappear from the universe of visible light.
E) its light will be slowed down by its increasing mass.