New york city became the nation’s greatest commercial center because
a. the erie canal funneled western produce down the hudson river.
b. goods were sold at much lower prices in new york than anywhere else.
c. it was the main hub of the nation’s railroad system.
d. low city taxes on trade increased commercial transactions.

The correct answer is A. the Erie Canal funneled western produce down the Hudson River

Explanation:

In the 1825 Erie Canal was built, this canal connects the Hudson River in Albany to the Lake Erie in Buffalo, both in New York state. The construction of this canal implied goods could be sent from the Atlantic Ocean or New York City to Lake Erie and the Great Lakes. By the 19th century transportation of good and products was difficult as mainly animals were used to transport them and  the lack of railways made it quite difficult, because of this the creation of the canal gave New York City a great advantage as it was faster and easier to transport goods in comparison to other cities, due to this New York City became one of the most important commercial centers.