A recording company obtains the blank CDs used to produce its labels from three compact disk manufacturers: I, II, and III. The quality control department of the company has determined that 6% of the compact disks produced by manufacturer I are defective, 4% of those produced by manufacturer II are defective, and 6% of those produced by manufacturer III are defective. Manufacturers I, II, and III supply 37%, 35%, and 28%, respectively, of the compact disks used by the company. What is the probability that a randomly selected label produced by the company will contain a defective compact disk?