Which of the Following Is Understood from Scientific Studies of Gender

Which of the following is understood from scientific studies of gender variance?

A) What is believed to be gender nonconforming behavior has remained consistent over the decades.
B) What is believed to be gender nonconforming behavior has remained the same for boys and girls.
C) Remembering the factor of cultural context is extremely essential.
D) gender nonconforming behaviors provoke strong reactions from parents,grandparents,teachers,and family but not from peers and friends.
E) The issue of bullying in school as related to gender remains obscure and unimportant.