What was Viracor Laboratories among the first to commercially offer in 2000?

A. Real-time qualitative PCR assays to diagnose patients with COVID-19
B. Real-time quantitative PCR assays to diagnose patients with HIV
C. Real-time quantitative PCR assays to diagnose patients with Adenovirus, BK virus and JC virus
D. Real-time qualitative PCR assays to diagnose patients with Influenza
Answer: 