Answer: A. Bamboo, shells, bones, and wood
Explanation: Before its invention, bones, tortoise shells, and bamboo slips were all used as writing surfaces, but as Chinese Hemp fiber and silk were used to make paper but the quality was far from satisfactory. Books at that time were made of wood or bamboo slips so they were heavy and occupied a lot of space.
The right answer for the question that is being asked and shown above is that: "the construction of mosques in ancient Ghana." Cultural diffusion is the transmission and blending of cultures over different civilizations. An example of cultural diffusion is that <span>the construction of mosques in ancient Ghana</span>
The Vietnam War. It was a long debate over lowering the voting age from 21 to 18, which began during World War II and only intensified during the Vietnam War when young men who were practically being heavily obligated and sometimes forced/drafted to fight for their country were being denied the right to vote.
“Old enough to fight, old enough to vote” became a common slogan for a youth voting rights movement, and in 1943 Georgia<span> became the first state to lower its voting age in state and local elections from 21 to 18.</span>