A New Screening Test for Lyme Disease Is Developed for Use

A new screening test for Lyme disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Three hundred people are screened at a clinic during the first year the new test is implemented. (Assume the true prevalence of Lyme disease among clinic attendees is 10%.) The predictive value of a positive test is:

A) 33.0%.
B) 18.2%.
C) 94.0%.
D) 22.2%.
E) 6.0%.