Astrophysicists explain that eventually the sun will swell to become a red giant, engulf the earth and "burn out" with all forms of energy dispersing in a final "heat death." Compared with conditions today, the entropy of the universe then will .
a. have increased greatly.
b. have decreased greatly.
c. remain the same because energy cannot be created or destroyed.
d. have decreased minimally.
e. not exist.