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Most crops require a lot of nitrogen to synthesise the proteins. The bacterium Rhizobium helps some of the crops to get nitrogen. Which of the following statements is incorrect for Rhizobium?

A) It converts atmospheric nitrogen into a soluble form that the plants can absorb from soil.                  

B) It can make its own food.         

C) (c) It lives in the root nodules of leguminous plants like gram, pea, moong etc.

D) (d) Leguminous plants provide food and shelter to Rhizobium.