Indicate whether each of the following measures is a measure of point prevalence,period prevalence, cumulative incidence, incidence density or incidence for aggregate data.Provide an explanation for your choice of measure.a.In 2009, CDC offered rapid HIV testing at social event frequented by young men whohave sex with men (MSM).A total of 1,312 MSM were tested and 77 testedpreliminarily HIV positive.The men who were NOT positive were followed for anadditional 12 months.A total of 15 tested posit