Which of the Following Best Explains Why the Rural Population

Which of the following best explains why the rural population is growing when young persons from rural areas consistently are moving to urban areas to seek employment?

A) Adults engaged in all the physically demanding farming tasks have longer life spans than people in urban areas.
B) Farm families continue to have a higher birth rate than urban families.
C) Many formerly migrant worker Hispanics are settling in rural counties.
D) Retirees and other urbanites able to conduct business through telecommunication and travel are moving in.