Answer:
i believe the answer is C i am not 100% sure though. Im doing my best to help people on here im sorry if its wrong
Explanation:
White blood cells ( lymphocytes is correct though)
C is the answer because these accessory pigments on mass by the chlorophyll, which is responsible for producing food for the tree
Basically, the P-P chain turns 4 protons into: 1 neutrino, 1 gamma ray, 1 positron, 1 helium nucleus.
A gamma ray = energy.
The chain converts hydrogen into helium and makes energy.
This is all occurring through fusion reactions where 2 protons basically smash into each other. But, it could also be e.g. a proton smashing with a deuterium nucleus. Or, other nuclei smashing together to make something else.
Hope this helps!
D or aka changes in the moons orbit
Hope this helps you