Answer:
The correct answer is that it can result in to put dirt, allergens or pathogen that can lead to activate the immune system and produce the antibodies for such pathogen.
Explanation:
The nose has very thin hairs and mucus that help to prevent the allergen, dirt or pathogen to enter in the inside when we breathe. It is a protection system for the respiratory system. If an individual is picking his nose he can literally insert the dirt, bacteria or another pathogen present on his finger by himself.
The immune system recognizes these pathogens and produces specific antibodies accordingly
Thus, the correct answer is - it can activate the immune system to respond by producing antibodies.
