Towns Along the Mississippi River in 1850
• Vicksburg, Mississippi
• Memphis, Tennessee
• New Orleans, Louisiana
The invention of the steamboat helped establish these cities as -

{Hello Kirito here!! i believe this is your answer}

-Vicksburg Mississippi-    {Im sorry if incorrect}

Explanation:

Steamboats played a major role in the 19th-century development of the Mississippi River and ... Fulton started steamboat service between Natchez and New Orleans. ... red smokestacks, that sailed between New Orleans and Vicksburg, Mississippi. ... VI was also used to transport Confederate troops to Memphis, Tennessee.

A)major centers commerce

Explanation: don’t ask just know it’s right. Yw:) but actually it’s right search it’s right

i would say your answer would be the second option.

hope this !

i believe your answer is d)