Girls menstruated at an average age of 16 in the nineteenth century, but today some girls reach menarche as early as age 9. This phenomenon is called the _____ trend.
A) pubertal
B) spermarchal
C) secular
D) menarchal

Question

Quizplus · Accepted Answer

The trend of girls reaching menarche at a younger age than in previous generations is called the secular trend. The other options are not relevant to this phenomenon.

Girls Menstruated at an Average Age of 16 in the Nineteenth