What type of reaction caused the following condition? A patient was undergoing a series of surgical procedures requiring a general anesthetic. At the third procedure, he suddenly became hypotensive with marked cardiac arrhythmia. In addition, his breathing became difficult due to extensive bronchoconstriction and obstructive laryngeal edema. Despite the efforts of the surgical team, the patient developed severe and permanent brain damage due to hypoxemia. It was subsequently discovered that the patient had developed IgG antibodies to the anesthetic gas and this had resulted in an anaphylactoid response to the anesthetic.
A. Type I Hypersensitivity B. Type II Hypersensitivity C. Type III Hypersensitivity D. Type IV Hypersensitivity E. Direct activation of mast cells by the anesthetic gas