Needs to be answered ASAP!! Thank you

"6. Use the graph to answer this question; the correct statement regarding Planet C is:

(the y-axis says: weight (N), and the x-axis says: Mass (kg))
(The the first line is for Planet C, the middle/ second is for Earth, and the third line is for Planet A)

Multiple-choice options:
a) an astronaut on Planet C would weigh more than on Earth
b) an astronaut on Planet C would weigh less than on Earth
c) the mass of an astronaut on planet C is greater than on Earth
d) the gravitational field of Planet C is less than Planet A"

(Sorry about the terrible image quality)

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

e/c, where e is its total energy