They did not have any plum.
Smoking is the action or habit of inhaling and exhaling the smoke of tobacco by sucking on the end of a lit cigarette, cigar, pipe, etc.
Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease
Smoking also increases risk for tuberculosis, certain eye diseases, and problems of the immune system, including rheumatoid arthritis.
I think your best options here are
15) opioids
16) anabolic steroids
Opioids mimic the natural structure of a neurotransmitter
Anabolic steroids are synthetic testosterone
Answer:
Changes in color and smell.
Explanation: