OG133新问题

133. In Holland, a larger percentage of the gross national product is spent on defense of their coasts from rising seas than is spent on military defense in the United States.

(A) In Holland, a larger percentage of the gross national product is spent on defense of their coasts from rising seas than is spent on military defense in the United States.

(B) In Holland they spend a larger percentage of their gross national product on defending their coasts from rising seas than the United States does on military defense.

(C) A larger percentage of Holland’s gross national product is spent on defending their coasts from rising seas than the United States spends on military defense.

(D) Holland spends a larger percentage of its gross national product defending its coasts from rising seas than the military defense spending of the United States.（E）

(E) 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.

这里defend sth. from rising seas是什么用法？是defend sth. from doing sth.还是rising seas是一个名词短语，rising修饰seas呢？那就是defend sth. from sth.？

那位NN能不能讲讲defend的用法，以及它和名词形式defense有什么区别呢？

谢谢！