A 10-year-old boy following a road traffic accident presents to the causality with contaminated wound over the left leg. He has received his complete primary immunization before preschool age and received a booster of DT at school entry age. All of the following can be done EXCEPT:

(A) Injection of tetanus toxoid
(B) Broad spectrum antibiotics
(C) Wound debridement and cleaning
(D) Injection of human antiserum