Which of the following statements is true regarding chemiosmotic hypothesis?

(i) Protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids

(ii) Primary acceptor of electron which is located towards the outer side of the thylakoids membrane transfers its electron not to an electron carrier but to an H carrier

(iii) The NADP reductase enzyme is located on the stroma side of the membrane

(iv) Protons are also removed from the stroma by NADP

(v) Due to removal of proton by NADP, within the chloroplast, protons in the stroma decrease in number, while in the lumen there is accumulation of protons. This creates a proton gradient across the thylakoid membrane

(vi) Due to accumulation of protons in lumen of thylakoid measurable increase in pH in the lumen