D. the emergence of credit and an increase in manufacturing output
Answer:
<h2>Pioneer settlers were sometimes pulled west because they wanted to make a better living. Others received letters from friends or family members who had moved west. These letters often told about a good life on the frontier. The biggest factor that pulled pioneers west was the opportunity to buy land.</h2>
In 1791, Congress passed a bill creating a national bank for a term of 20 years, leaving the question of the bank's constitutionality up to President Washington, who reluctantly signed the measure as he believed a bank was necessary for the nation's financial well-being.
