The correct option is D A→(iii), B→(i), C→(iv), D→(ii)
If a female feels discomfort or pain during menstrual flow, it is referred to as dysmenorrhea.
If the periods don’t occur by the age of 15, or haven’t occurred in 90 days, it is considered to be the absence of menstruation and is referred to as amenorrhea.
Menorrhagia is a medical term used to describe a condition in which the menstrual flow is unusually heavy (more volume of fluid is lost) or the duration of flow is prolonged.
If the onset of puberty in an individual (male or female) occurs before the age of 8, it is called precocious puberty. It is the onset of puberty before the appropriate time.