Answer: The correct answer for the fill in the blank is B) NADPH and ATP.
Light dependent phase is the first phase of photosynthesis. In this phase, chlorophyll pigment absorbs energy from sunlight ( in the presence of CO₂ and H₂O ) through a series of chemical reactions and form ATP and NADPH, which are the energy containing compounds.
This energy is then utilized in the formation of food ( glucose) in the next stage, which is light independent phase of photosynthesis.
Thus, option B) is the right answer.
