For Number 1, your answer would be B. Have him go at his own speed and not for the win.
For Number 2, It would be D. The girl would get an Anxiety Attack.
Number 3, is not fully filled out in question form.
At adolescence, the pituitary activates the gonads which are the ovaries in females and testicles in males. Gonads is a sex gland or a reproductive gland that produces gametes which are the sex cells and sex hormones in organisms.
Metabolic Syndrome is and incurable but treatable cluster of disease that cause an increase in the chance of heart attacks and heart problems.
Rheumatic disease or rheumatic disorder is an umbrella term for conditions causing chronic, often intermittent pain affecting the joints and/or connective tissue. The study of, and therapeutic interventions in, such disorders is called rheumatology
Insulin Resistance is a resistance to the hormone insulin, resulting in increasing blood sugar.
Cardio Decline is when a person starts to break down and gain more weight, causing them to lose strength. It has to do with the age of the person.
What I could see is using Cardio Decline to fill in the blank as a figure of speech, a metaphor per say. The answer is B. When they start to realize their inevitable life with their Cardio Declining, it could help them see what responsibilities they have to full fill.