GKFix MCQ Question

Why does the nitration of benzene require a mixture of HNO3 and H2SO4 rather than HNO3 alone?

• A. HNO3 is too expensive
• B. H2SO4 acts as a solvent
• C. H2SO4 is needed to generate the active NO2+ electrophile
• D. HNO3 alone is too dilute