மேற்கண்ட இப்படம் குறித்து 5 வரிகளில் கவினுற தங்கள் கருத்துகளைப் பதிவு செய்க. pls ANSWER This question. very urgent.

Wich of the following is true about social classes. a.they are mainly based on gender.b.people in most society's cannot improve their status.c.they are mainly based on age.d.they can improve their satus by getting a good education.