danelle is 55. recently she stopped menstruating. danelle has most likely experienced: emerging adulthood…

Brief Explanations:

Menopause is the permanent cessation of menstruation, typically occurring in women around Danelle's age (55). Emerging adulthood refers to a life stage between adolescence and full - fledged adulthood (ages 18 - 25). Menarche is the first occurrence of menstruation. Neurogenesis is the process of generating new neurons.

Answer:

menopause.