Answer:
D-building comes and inventing concrete
Explanation:
The Roman Concrete was used from the late Roman Republic to the end of the Roman Empire. It was used to build monuments, buildings, roads, and bridges. The formula of the Roman Concrete was a mix of lime or gypsum, brick or rock pieces, and water. This concrete has been known to be more resistant than modern concrete.
I think the answer is Langston Hughes sorry if I'm wrong, but I'm like 99% sure its him....
States rights and slavery.
Freedom of religion, speech, and press, right to assemble and petition the government
a); and c). During Chandragupta II reign, great impulse was given to arts and science. One of the main scholars of the time was Aryabhata, who came up with the concept of zero and discovered the ratio of pi. He also worked in demonstrating that the earth moves around the sun instead of otherwise.
