An infant born at 33 weeks underwent five photocoagulation treatments to both eyes due to retinopathy of prematurity at six months of age. The physician used an operating microscope during these procedures. These treatments occurred once per day for a defined treatment period of five days. How would you report all of these services?

a. 67229 -50

b. 67229 x 5

c. 67229, 69990

d. 67229