Answer: The correct answer is D) Thylakoid of chloroplast.
Light dependent reaction is the first phase of photosynthesis that takes place in the thylakoid membrane of the chloroplast.
In this phase, energy from sunlight is captured by chlorophyll and converted into chemical energy in the form of ATP and NADPH.
This is further utilised in the formation of carbohydrate (glucose) during the next phase that is the light independent phase.
Thus, option D) is the right answer.