It is strongly associated with ribosomal protein where 40 to 50% of it is present:

Explanation

Ribosomal RNA (rRNA) is the correct answer because it is a fundamental structural component of ribosomes, where it forms a significant part of the ribosome's mass, approximately 40 to 50%, alongside ribosomal proteins. Unlike mRNA, tRNA, and snRNA, rRNA's primary role is not in carrying genetic information or splicing but in forming the ribosome and facilitating protein synthesis.mRNA is incorrect as it serves to convey genetic information rather than forming part of the ribosome. snRNA is involved in RNA processing within the nucleus, not in the ribosome's structure. tRNA functions in translation by delivering amino acids to the ribosome and is not a structural component like rRNA.