When it comes to the inner planets, it is true that The atmospheres of Mars and Venus are similar in composition.
Atmospheres of Venus and Mars
Venus has a very thick atmosphere which is quite hot on account of its proximity to the sun.
Mars on the other hand, has an atmosphere which is thin and quite cold. Both Mars and Venus share the fact their their atmospheres are 95% comprised of Carbon Dioxide which makes them similar.
In conclusion, option C is correct.
Find out more on Venus at https://brainly.com/question/1231727.
