No links if chu do i'll report chu How did streetcars affect the development of American cities and towns?

A. They allowed residents to cross rivers.
B. They led to the decline of railroads.
C. They allowed cities to export goods.
D. They led to the development of suburbs.

African americans at the time just came out of slavery and needed money to provide for there families. so they joined for the money mainly.

The correct answer is d

Tenochtitlán was the capital of the aztec empire. it was a busy and bustling city where“there are daily more than 60,000 souls, buying and selling, and where are found all the kinds of merchandise produced in these countries.” when cortes arrived in 1519, theenormity of the trading market and the smoothness of it’s running both surprised and  impressed him.