Final answer:
The pigments in light-harvesting complexes called antenna complexes absorb light energy, which is then passed from molecule to molecule until it reaches the reaction centre. Option C is correct.
Step-by-step explanation:
Light energy is absorbed by antenna complexes in light-harvesting complexes. The energy is transmitted from molecule to molecule until it reaches the reaction centre.
Photosynthetic pigments within the photosynthetic membranes are organized into photosystems, which consist of a light-harvesting complex and a reaction centre. The light-harvesting complex consists of multiple proteins and associated pigments that absorb light energy and transfer it to the reaction centre. This is where the conversion of light energy into an excited electron occurs.
Therefore, the correct answer is option c) Antenna complexes; reaches ATP synthase.