Photosynthesis takes place in B. In chloroplasts because that's where the plant's green color is produced.
Another difference is that protists<span> belong to the kingdom </span>Protista<span>, while </span>bacteria<span> are members of the Monera kingdom. </span>Bacteria<span> are uni-cellular organisms that do </span>not<span> contain organelles like a nucleus or chloroplasts.
if this helps </span>