Dr. Woolston is interested in studying teenagers’ social lives and the challenges they face. Dr. Woolston should consult with his colleague , who would argue that the main difficulty teenagers face is forming a sense of .

Erikson , identity

Explanation:

The term "Sense of Identity" means the realization or awareness by an individual that he/she is distinct from others. What brings about a sense of identity is our habits, religion, culture, and other idiosyncrasies that distinguish us from every other person. Identity is derived from nationality, language, sexuality, etc. For instance, a person who speaks French and has lived in France will identify with their way of life than a migrant. Thus, Sense of identity is natural and peculiar to every individual. It is important to keep to our identity and acknowledge it often.

i think its toxic gasses but i could be wrong

yes he did writing dots to make the answer