Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
The growth of population has its problems as we shall see. As there are more and more mouths (1) ______ , there comes a great strain (2) ______ the resources of a country; this is real in the case of developing countries with the result they are unable to push ahead economically. As food is not sufficient there is chronic malnutrition in these countries especially in women and children resulting in weaker population (3) ______ would only economically be a drain on the country as their productive years will be short. As health and education are the State's (4) ______ , they affect the country's finances. So in developing countries health and illiteracy continue to be the problem. The unwieldy growth of population leads to the problem of housing and sanitation. In many countries the slums are a (5) ______ to the eyes. Slums grow round big cities and are found with all the drawbacks.

These are the areas of disease, health and crime.

As there are more and more mouths (1) ______