Now we are in a familiar territory. Many students love and relish sporting activities so much taht questions could be answered without reading sometimes.
Option A - INCORRECT.
This is only strengthening the analyst claim that there exists genetic characteristics among-st the populace of country D. This is false in relation to the tennis coach claim.

Option B - INCORRECT.
This is also not a position of sterling quality to the argument of the coach. A player should develop the physique while playing it should be a criterion for playing professional tennis.

Option C - CORRECT.
This is a strong point. One that explains the reason for country D's success as a result of hard work, tutelage and grooming right from the various schools all over the country.

Option D - INCORRECT.
This is a testament to how good the country is at playing professional tennis. In fact it weakens the analyst's position when you begin to reason that ''practice makes perfect''.

Option E - INCORRECT.
It is possible to assume they dope in country D because of their intimidating achievements in that field. But, it is difficult to presume hardworking players would want to cheat their way through. It's an innate quality they started doing right from school days.