Use the Following to Answer the Questions Below

Use the following to answer the questions below:
In each of the following reactant-product combinations associated with the production of urea, contrast the nitrogen content of the two compounds using the response list. Responses may be used more than once or need not be used at all.

-Carbamoyl phosphate-citrulline

A) Nitrogen content remains the same.
B) Nitrogen content increases by one atom.
C) Nitrogen content increases by two atoms.
D) Nitrogen content decreases by two atoms.