About 95%/ the atmosphere/ on Mars/ be/ carbon dioxide, which/ be/ poisonous/ breath

A. About 95% of the atmosphere on Mars is carbon dioxide, which is poisonous to breath.

B. About 95% on the atmosphere on Mars is carbon dioxide, which is poisonous breath.

C. About 95% on the atmosphere on Mars is carbon dioxide, which is poisonous to breath.

D. About 95% of the atmosphere on Mars is carbon dioxide, which is poisonous breath.

Tiếng Anh 8 - Unit 12: Life on other planets - Writing