The correct answer is an immunologist.
Reaction to peanut such as itchiness, trouble in swallowing and breathing are the signs of peanut allergies.
It is descried as type I hypersensitivity (reexposure to antigen-allergen) reaction of the immune system in susceptible individuals. So, diseases that affect immune system such as allergies are concern of an immunologist.
Answer:
Washing fruits
Explanation:
It is the most understandable choice
An Erlenmeyer flask can be used.
B bc...... b is da answer :/