Secondary sex features are characteristics that develop during puberty. Using the process of elimination, options B and D are really primary gender characteristics. Also, option A has more to do with your genetics than your gender.
That leaves option C. Breasts. They are a secondary sex characteristic that develops during puberty.
Hope this helps! :)
Answer:
Your answer will be The 3rd One! C.
Explanation:
Cell, Tissues, Organs, Organ Systems, Organism (Multicellular).
This is from the smallest component to largest components that make up a human organism.
I believe it is the 3rd one but I am not sure but if you want an explanation on why, I will tell you that phobias are based off of a certain object,situations,or anything that makes you react with so much fear. That is why I think it is the 3rd one but let me know what the answer is I am curious of what the actual answer may be.