Which of the following statements are truel false?
1. Chemical hazards include dust or fumes, mists, vapours, and gases that are a result of chemical processes that takes place inside the industrial unit.
2. Chemical hazards include excessive levels of electromagnetic and ionizing radiations, noise, irregularities in temperature, air quality.
3. Ergonomic hazards rise because of repetitive stress or injuries caused due to different processes such as lifting, pushing, pulling etc.
4. Psychological hazards includes bullying at workplace by a senior, supervisor, manger, fellow or junior employee.

A. 1, 3, 4 are true and 2 is false

B. 1, 3 are true and 2, 4 are false

C. 2, 4 are true and 1, 3 are false

D. 3, 4 are true and 2, 1 are false

Answer: Option A