Choose the correct option:
$(1)$ The first product of the $C_3$ pathway in the Calvin cycle is $PGA / OAA$.
$(2)$ The primary acceptor of $CO_2$ in the $C_4$ pathway is $PEP / OAA$.
$(1)$ The first product of the $C_3$ pathway in the Calvin cycle is $PGA / OAA$.
$(2)$ The primary acceptor of $CO_2$ in the $C_4$ pathway is $PEP / OAA$.
- A$(1) = PGA, (2) = PEP$
- B$(1) = OAA, (2) = PEP$
- C$(1) = PGA, (2) = OAA$
- D$(1) = OAA, (2) = OAA$
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