A geneticist models the occurrence of defective genes in the kidney of mouse exposed to a toxin as a Poisson process with an average rate of 3 defective genes per 20 cc of kidney tissue. He wants to examine the variation in the occurrence of defective genes by simulating the number, D, of defective genes in 100 cc of kidney tissues. One such realization of D is generated by using U = 0.71 as a random observation from a Uniform distribution on (0,1). The corresponding value of D is?