A 60-year-old man presents with an enlarged scrotum. The clinician uses a penlight to transilluminate the scrotum. In a patient with a hydrocele, what would the clinician expect to find?

a. The scrotum will be dark.
b. The scrotum will appear light pink or yellow.
c. The scrotum will appear milky white.
d. The internal structures will be clearly visible.