A 27-Year-Old Male Discovers a Tick Attached to His Waist

A 27-year-old male discovers a tick attached to his waist three days after he returns from camping in the Rocky Mountains. He removes it and forgets about it until an area of redness appears at the same site as the tick bite. Because he develops a fever, he decides to visit his physician. His infection is most likely caused by

A) Borrelia burgdorferi.
B) B) recurrentis.
C) Leptospira interrogans.
D) Treponema pallidum ssp. pertenue.