Solution

Large clusters of 10 to 100 ribosomes, actively translating protein synthesis are called polysomes. The ribosomes in a polysome are connected by a single molecule of mRNA that is being translated simultaneously by many closely spaced ribosomes.
Polymers are large molecules composed of many monomer units.
Polypeptide is large linear polymer of amino acids bonded together by peptide linkage.
Okazaki fragments are small nucleic acid fragments formed by discontinuous replication of lagging strand during DNA replication and are later joined together by DNA ligase enzyme.
So, the correct answer is option A.