Question

Francis gently combed through his hair and four hairs came out. Which is most likely the age of the four hairs?

Answer 1

Hair growth has 3 cycles: anagen (growth of a hair follicle), catagen (intermediate stage of preparation of hair follicles for the resting stage, and deeper hair follicle parts starts to die), telogen (hair shedding stage, older hairs die and shed, new hairs begin to grow).

So the answer to your question is Telogen

Answer 2

I'm not sure but I'm pretty sure it's either 4 or 2 years, because the keyword is "gently", which means that he did it soft if he were to comb out the hair soft many hairs wouldn't fall out, but if you had old hair up to 2 - 4 years then I'm pretty sure the hair would fall off if anyone is confused  on which one to choose I recommend 4 years because it's longer but if it was 4 years more hair would fall off so it actually might be 2 years just read this through and see which one gravitates more to you.

C. 2 Years