Which statement about commuter marriages is true?

A) Commuter marriages occur only among the most affluent families, as only they can afford to maintain two separate households.
B) Increasing transportation costs have resulted in a significant decrease in commuter marriages.
C) Many poor and working-class couples have commuter marriages that do not fit the common belief that wealthy young professionals make up the bulk of commuter marriages.
D) Because they are so damaging to families, many corporations have policies specifically against commuter marriages.

Many poor and working-class couples have commuter marriages that do not fit the common belief that wealthy young professionals make up the bulk of commuter marriages. This statement is true, as research shows that there are many working-class and minority couples who have commuter marriages due to job opportunities or other circumstances. The other choices are untrue - not all commuter marriages are among affluent families, transportation costs have not necessarily resulted in a decrease in such marriages, and corporations do not necessarily have policies against them.