Answer:
D) A constitutional amendment was ratified that required senators to be elected directly by popular vote.
Explanation:
USATestprep got it right
I’m a scientist but they two inventions were the bomb and bomber
<span>Land Bridge Theory Synopsis: The
Land Bridge Theory, also known as the Bering Strait Theory or Beringia
Theory, is a popular model of migration into the New World. This theory
was first proposed in 1590 by José de Acosta and has been widely
accepted since the 1930s. The Land Bridge Theory proposes that people
migrated from Siberia to Alaska across a land bridge that spanned the
current day Bering Strait. The first people to populate the Americas
were believed to have migrated across the Bering Land Bridge while
tracking large game animal herds. This theory is widely adopted by most
modern textbooks.</span>
