The correct option is A Ribosomes
Palade granule is composed of RNA and proteins i.e., ribonucleoprotein. They are dispersed in the cytoplasm in large number or may be attached to the endoplasmic reticulum and are mostly involved in assembly of proteins which are encoded by mRNA. They are found in both eukaryotes and prokaryotes and are granular in nature. Thus, they are ribonucleoproteins and are granules which indicate that they are ribosomes. Thus, the correct answer is option A.