After Seeing the Red Reflex and Retinal Vessels Through the Ophthalmoscope

After seeing the red reflex and retinal vessels through the ophthalmoscope, how does the nurse locate the optic disc?

A) By rotating the diopter to the block (positive) numbers until the optic disc comes into focus
B) By following the retinal vessels inward toward the nose until optic disc is seen
C) By using the green beam light while looking outward toward the ear until the disc is seen
D) By locating the macula and then looking temporally (toward the ear) until the disc is seen