Where does the primary photochemical reaction occur in the chloroplast,or where do the light reactions of photosynthesis take place?

In cyclic photophosphorylation,which one of the following is formed?

The process of $ATP$ synthesis in chloroplasts and mitochondria is explained by:

The trapping centre of light energy in photosystem-$I$ is

The light phase of photosynthesis is called

Read the following statements:
$(a)$ $F_{0}$ part of $ATP$ase is associated with the breakdown of the proton gradient.
$(b)$ $A$ $H^+$ carrier contributes to the creation of the proton gradient.
$(c)$ Movement of electrons in $ETS$ is coupled to the pumping of protons into the lumen.
$(d)$ Formation of $NADPH + H^+$ is related to the creation of the proton gradient.
How many of the above statements are correct?