If someone's behaviour is altered by the scent chemicals released by another member of his species,what is the term used for that scent chemical

A)  scent hormone 
B)  pheromone 
C)  odourant 
D)  chemolfaction

Pheromone

A chemical substance produced and released into the environment by an animal, affecting the behavior or physiology of others of its species.

Scent Chemical

Substances that have odor or fragrance, often used in the production of perfumes, cleaners, and personal care products.