Answer:
The correct match for the biological activities that are acted on the parts of the cells is: I-C, II-A, and III-B.
I - Chloroplasts: C. Site of photosynthesis
II - Mitochondria: A. Site of cellular respiration
III - Stroma: B. Site of dark reactions
Chloroplasts are organelles found in plant cells and are the site of photosynthesis, where light energy is converted into chemical energy. The stroma is the fluid-filled space within the chloroplast where the dark reactions of photosynthesis, also known as the Calvin cycle, take place. Mitochondria are organelles found in both plant and animal cells and are the site of cellular respiration, where energy is produced from the breakdown of glucose.