The correct option is C 1, 2 and 4 only
The development of various fields of medical science and health care facilities has vastly improved the quality of life in the last century. This improved health care and better medical facilities have had a huge impact on the population. To curb the population down, it is important to motivate smaller families by using various contraceptive methods and avoid unwanted pregnancies.
Contraceptive methods are ideal if they are not only effective in use but should be easily available, reversible and with little or no side effects.