Which type of social group serves as a standard of comparison for people who want to join that group? a. in-group b. primary group c. reference group d. secondary group

the answer is going to bee B

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.