What's being asked here? I'm personally not sure
You can infer there is a big population of sierra leone
As of 2013 the population of sierra leone is 6.092 million and is increasing.
Answer
At week 5-6 of gestation, the baby’s heart starts beating.
Explanation
Fertilization occurs in week 3 followed by implantation in week 4.In week 5 the levels of hormones increases with formation of the baby’s heart and circulation system. In week 6, the neutral tube closes followed by development of structures necessary to form eyes and ears. The head of the baby develops at week 7 followed by nose in week 8 and toes in week 9.
Well, I think it would be most likely Athletic Ability.