A cell exhibits a high level of improperly processed mRNA. What role does the exosome play in this scenario?

• A. The exosome repairs the improperly processed mRNA.
• B. The exosome facilitates the export of improperly processed mRNA.
• C. The exosome degrades the improperly processed mRNA.
• D. The exosome inhibits the transcription of new mRNA.

Answer: (C)