Answer:
most likely c but wait for another answer to confirm
Answer:
B) demand for new markets + D) demand for new markets
hope this helps :)
Trade originated with human communication in prehistoric times. Trading was the main facility of prehistoric people, who bartered goods and services from each other before the innovation of modern-day currency.
More than 70 percent of all immigrants, however, entered through New York City, which came to be known as the "Golden Door." Throughout the late 1800s, most immigrants arriving in New York entered at the Castle Garden depot near the tip of Manhattan.