Choose the correct option from the following:
$(i)$ The light reactions of photosynthesis occur in the thylakoid / stroma of the chloroplast.
(ii) The membrane-less organelle is the lysosome / ribosome.

(A) $(i)$ The light reactions of photosynthesis take place in the thylakoid membrane of the chloroplast,where chlorophyll pigments are located.
(ii) Ribosomes are non-membrane-bound organelles found in both prokaryotic and eukaryotic cells,whereas lysosomes are single-membrane-bound organelles.