What are the secondary sex characteristics in males?
1) Deepening of the voice, growth of facial hair, axillary hair, and pubic hair, increase in muscle bulk, and beginnings of the sex drive
2) Increased height, broadening of shoulder, and development of a deep voice
3) Development of breast tissue, growth of facial hair, and increase in muscle bulk
4) Increase in height, increased muscle strength, and growth of facial and body hair
