That is because in many societies worldwide, families still don't want to send girls to schools because they don't think that it's a place where girls should go. Governments try to fight this with various incentives but often the cultural tradition is stronger than these incentives and this creates a society not based on equality. This is relatively common in underdeveloped countries.
That certain concerns and involvements was need to be mended and corrected
C. oil
BECAUSE IT CAN POLLUTE AIR
Your answer is number 1 I think