What kind of atmosphere do the inner planets have?

A. Mercury has no atmosphere, Mar's atmosphere is composed of 15% carbon dioxide. Venus has as atmosphere that is made up of about 97% carbon dioxide. Earth's atmosphere supports life and contains a mixture of gases and some water vapor.

B. Mercury has a thin atmosphere, Mar's atmosphere is composed of 95% carbon dioxide. Venus has as an atmosphere that is made up of about 97% carbon dioxide. Earth's atmosphere supports life and contains a mixture of gases and some water vapor.

C. Mercury has no atmosphere, Mar's atmosphere is composed of 95% carbon dioxide. Venus has as atmosphere that is made up of about 97% hydrogen and Helium. Earth's atmosphere supports life and contains a mixture of gases and some water vapor.

D. Mercury has no atmosphere, Mar's atmosphere is composed of 95% carbon dioxide. Venus has as atmosphere that is made up of about 97% carbon dioxide. Earth's atmosphere supports life and contains a mixture of gases and some water vapor.