How many molecules of $\text{ATP}$ and $\text{NADPH}$ are required for every molecule of ${\text{CO}}_2$ fixed in the Calvin cycle?

1. A
   $2$ molecules of $\text{ATP}$ and $2$ molecules of $\text{NADPH}$
2. B
   $3$ molecules of $\text{ATP}$ and $3$ molecules of $\text{NADPH}$
3. C
   $3$ molecules of $\text{ATP}$ and $2$ molecules of $\text{NADPH}$
4. D
   $2$ molecules of $\text{ATP}$ and $3$ molecules of $\text{NADPH}$