When does trace evidence occur? A. when a perpetrator forgets something at a crime scene
B. when an eyewitness tells Investigators what they saw
C. when a perpetrator wears shoes that can be traced to the manufacturer
D. when two objects come into contact with one another

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sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,

answer; three;