C i think i hope it helps
In order to determine body composition with bioelectrical impedance, you must also know;
-C. :)
C is the answer!!
Artificial methods in common use include preventing the sperm from reaching the ovum (using condoms, diaphragms, etc), inhibiting ovulation (using oral contraceptive pills), preventing implantation (using intrauterine devices), killing the sperm (using spermicides)
Answer:
child labor society,
family income, interpersonal relationships and employment-related.