Dude yall i aint ever thought about this this way but black people started pullin there pants down half way and white people called it saggin and saggin spelt backerds is n. i.g. g.a. s

omg im black and didn't know that

Explanation:

OvO

option c (nickel) is not found in earth's crust. the earth's crust basically contains eight (8) elements namely: oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium (listed in order of abundance).