What is one advantage that often draws migrants from rural areas to cities?

That one advantage of that often draws migrants from rural areas to cities was that there was greater availability of social welfare services.

Explanation:

People often migrate from rural areas to urban development because they require a lot of social welfare services. The rural areas are not so well equipped with basic social welfare services.

Globalization has had its effect on every person. People are always looking to better and to come up with something which is sustainable.

The people also move from rural areas to urban due to the economic opportunity. They had to move from one area to another. Better facilities and education for their children and their future.  

the answer is b. i did this test and got it right.

wealth comes from those who are the most hard working and   competent