A 29-Year-Old Woman Had a 2

A 29-year-old woman had a 2.5-mm Breslow thickness melanoma removed from her right shin. She was referred for wide local excision of the scar and consideration of sentinel node biopsy. In what proportion of patients with a negative sentinel node biopsy does nodal recurrence subsequently develop in the same lymph node basin?

A) <1%
B) 1-4%
C) 5-9%
D) 10-14%
E) 15-25%