The water splitting complex is associated with

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?

During the light reaction,the water splits into

Which of the following photosynthetic pigments is responsible for the photolysis of water,leading to the release of molecular oxygen?

Select the correct option for the $ATP$ produced in the $Z-$scheme of the light reaction.

The two-pigment system theory of photosynthesis was proposed by,or the concept of evidence for the existence of two photosystems in photosynthesis was given by: