How do you mark someone the brainliest?

To mark someone brainliest there have to be two people who answered your question then, there is a crown on the bottom of their answer click on that .                                                                                                        

hard bop is an extension of bebop that was kind of interrupted by the cool sounds of west coast jazz. it experienced its revival in the 1990’s.

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).