than连接主语并列时候than后面什么时候倒装？什么时候不倒装？

23. Freedman’s survey showed that people living in small towns and rural areas consider themselves no happier than do people living in big cities. (A-P1-30)

25. Holland spends a larger percentage of its gross national product on defending its coasts from rising seas than the United States does on military defense. (A-P1-234)

1.        Local residents claim that San Antonio, Texas, has more good Mexican American restaurants than any city does in the United States.

(A) any city does

(B) does any other city

(C) other cities do

(D) any city（B）

(E) other cities

这道题B是不是，does放最后也行啊？