In C3 and C4 plants, primary carboxylation takes place with the help of

Options :

1. RuBP carboxylase and PEP carboxylase

2. PEP carboxylse and pyruvate carboxylase

3. PEP carboxylase and RuBP carboxylase

4. RuBP carboxylase and pyruvate carboxylase