PLEASE HELP?!? FOR MY EATH SCIENCE

Kepler-452b is considered a Super-Earth in the middle of the habitable
zone. What challenges does this planet face in terms of being
habitable?

A- its incredible mass causes the gravity on the surface to be about
twice what we feel here on Earth

B- the thick atmosphere could trap heat creating a runaway greenhouse
effect

C- both A and B

D- none of the above