B) ribosomes attached to each other in a linear arrangement
C) several ribosomes attached to a single mRNA
D) many ribosomes attached to a strand of endoplasmic reticulum.
Explanation
Refer to answer (The association of many ribosomes with single mRNA leads to formation of polyribosomes or polysomes. It occurs during translation process of protein synthesis.).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.