Nitrogen Fixing Bacteria in the Roots of Soybeans Help Provide

Multiple Choice

Nitrogen fixing bacteria in the roots of soybeans help provide a source of nitrogen to the plants,and in exchange obtain food from the plants.Which reaction can these bacteria catalyze?

A) Nitrogen gas (N₂) to nitrate (NO₃)
B) Ammonia (NH₃) to nitrate (NO₃)
C) Nitrogen gas (N₂) to ammonia (NH₃)
D) Nitrate (NO₃) to ammonia (NH₃)
E) Nitrate (NO₃) to nitrogen gas (N₂)