Untrained Athletes ... which will see the greatest progress ?

[Chupacabras]

@Juggler

These twe questions conflict. Greatest progress does not always mean quickest improvement.

But to answer your questions with questions: What attributes ae most trainable? What is least likely to be improved?

I say C) will improve most, since weak, fat, and unfit are not that hard to fix.

I agree.

C seems like a pretty unlikely combination of traits though. I don’t think I have ever seen someone who is unfit, weak and fat but still fast.