Respuesta :
Answer:
A.. This method is the least effective method of all birth controls.
Explanation:
This method is the least effective method of all birth controls.
The statement that best explains why the natural family planning method should be used by long-term couples only is that the method is the least effective method of all birth controls.
What is natural family planning method?
Natural Family Planning (NFP) relies on the ability to track ovulation in order to prevent pregnancy.
This method involves the calculation of the ovulation period of the female to know when to have se*ual intercourse.
This method is the least method of birth control, hence, should be used by long-term couples only.
Learn more about family planning at: https://brainly.com/question/7630210
#SPJ2