50 IS THE ANSWER
HOPE IT HELPS
The answer is B I believe!
Oparin-Haldane hypothesis. The Oparin-Haldane hypothesis is named after the two scientists; <span>Russian scientist Aleksandr Oparin and English scientist J. B. S. Haldane. The two scientists separately hypothesized that life began when some inorganic molecules were converted into organic molecules specifically amino acids by the help of energy came from a lightning struck.</span>
Mercury, due to it's low gravity it would not be able to hold a very strong atmosphere.