The correct option is D All of the above
- Family planning allows prevention of unwanted pregnancies and thus, control population.
- There are temporary and permanent methods of preventing unwanted pregnancy.
- Temporary birth control includes the use of condoms, diaphragms, insertion of an intrauterine device (IUD) like a copper-T, taking contraception pills (hormonal contraception).
- Permanent methods involve vasectomy or tubectomy.
Hence, the correct answer is option D.