Read the following statements

Statement I: CF₁ of ATP synthase is embedded in the membrane of thylakoid and carries out active transport of protons

Statetemt II: Proton gradient is broken down due to movement of protons across the membrane into the lumen of thylakoid.

In light of the above statements, choose the most appropriate answer from the options given below.

St - I: CF₁ of ATP synthase is not embedded in the membrane of thylakoid, and it does not carry out active transport of protons. CF1 (also known as F1) is the catalytic portion of ATP synthase and is located on the stromal side (the side facing the stroma) of the thylakoid membrane in the chloroplasts. It does not transport protons but instead functions in the synthesis of ATP during the light-dependent reactions of photosynthesis.

St - II:  Proton gradient is broken down due to movement of protons from lumen of thylakoid across the membrane into the stroma of the chloroplast.