The awnser is B sir: Leaders engaging in war for senseless reasons<span />
Things like heroin and do not get off topic with different types of drugs express 3-4 drugs and their effects explaining why youths shouldn't use them.
The correct answer is option C "It can be proven in an encyclopedia". Marches and protests against segregation and discrimination occurred during the 1960s, and there is evidence written in encyclopedias to proved it. Most of these marches and protests came from movements created in that time, including the civil rights movement, the student movement, the anti-Vietnam War movement, the women's movement and the gay rights movement.
The root word for a geographer is Geography if I'm right