Enzymes connected with opening and closing of stomata is

Answer: Option B

Enzymes connected with the opening and closing of stomata are PEP carboxylase.
Phosphoenolpyruvate carboxylase is an enzyme in the family of carboxy-lyases found in plants and some bacteria that catalyzes the addition of bicarbonate (HCO₃^-) to phosphoenolpyruvate (PEP) to form the four-carbon compound oxaloacetate and inorganic phosphate.
When water evaporation is minimal, it takes in CO₂ by fixing with PEP to form oxaloacetate through PEP carboxylase and causes the opening of stomata.