Photosynthesis takes place in the presence of chlorophyll and ________

The correct answer is D. Sunlight.

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar. Chlorophyll is a green pigment that absorbs sunlight and uses it to power photosynthesis. Water and carbon dioxide are also essential for photosynthesis, but they are not the source of the energy that powers the process.

Here is a more detailed explanation of each option:

• Water: Water is a reactant in photosynthesis, but it is not the source of the energy that powers the process. The energy for photosynthesis comes from sunlight.
• Nutrients: Nutrients are also essential for photosynthesis, but they are not the source of the energy that powers the process. The energy for photosynthesis comes from sunlight.
• Carbon dioxide: Carbon dioxide is a reactant in photosynthesis, but it is not the source of the energy that powers the process. The energy for photosynthesis comes from sunlight.
• Sunlight: Sunlight is the source of the energy that powers photosynthesis. Chlorophyll absorbs sunlight and uses it to power the process of converting water and carbon dioxide into oxygen and sugar.