A 26-year-old Hispanic male construction worker presents for evaluation of a 2-dayold puncture wound to his foot and muscle stiffness. His pulse is 112 beats per minute and temperature is $39.5^{\circ} \mathrm{C}$, and he is diaphoretic. His wound does not appear infected. He has stiffness and extension of his lower extremities. He also has pain and stiffness in his masseter muscles. Which of the following should be the initial treatment of this patient?
(A) Tetanus immunoglobulin.
(B) Tetanus-diphtheria toxoid.
(C) Wound debridement.
(D) Penicillin.