Which of the following is true of the trends in international migration?
a. The percentage of the world's population composed of migrants is not much different now than in 1900.
b. There are no countries where women comprise the majority of migrants.
c. Migrants of today are much less likely to be educated than those of the past century.
d. Though the global web has allowed people to easily become migrants, these people have had little effect on the global web itself.
e. Migrants moving to the Gulf region to work in the oil industry came mostly from South America.