A conclusion that can be drawn from the graph is that the demand for books increased slightly between the fourteenth and fifteenth centuries.
slightly between the seventeenth and eighteenth centuries.
sharply between the sixteenth and seventeenth centuries.
sharply between the eighteenth and nineteenth centuries.
Mark this and return

they required less loading and unloading

explanation:

the shipping container improved shipping because it cut down on unloading time by three weeks, eliminated wasted space, and allowed ships to carry.

according to greek mythology, persephone, the queen of the underworld, was the daughter of zeus and demeter, the goddess of harvest and fertility. she was also called kore, which means "maiden" and grew up to be a lovely girl attracting the attention of many gods.

explanation:

c. free trade can lead to low pay for workers in poorer countries.

im not sure on this one