The Centers for Disease Control and Prevention Recommends Which Two-Tiered

The Centers for Disease Control and Prevention recommends which two-tiered testing procedure for Lyme disease?

A) Screening by IFA or EIA with positive or borderline result followed by Western blot for confirmation
B) Screening by IFA followed by EIA for confirmation
C) Screening by Western blot followed by PCR for confirmation
D) Screening by EIA followed by PCR for confirmation