Which of these stars has the hottest core? A) a blue main-sequnce star. B) a red supergiant. C) a red main-sequence star.

C. red main-sequence star

Explanation:

Which of these stars has the hottest core? A) a blue main-sequence star. B) a red supergiant. C) a red main-sequence star.

Stars are basically exploding gases usually hydrogen and helium gases, held together by gravity. The closest to us is the sun. which contains gases

a blue main-sequence star temperature is between 10,000 Kelvin to 40000kelvin

red main-sequence star. can about 10million kelvin

while

B) a red supergiant is 3500-4500 K

The question you have asked is a