Which of the following best describes the state of U.S. military power today?

a. No other country can rival U.S. military power and as such no other countries are making any efforts to try.
b. The U.S. military is unrivaled in a range of areas even though other states, such as China and Russia, are making attempts to close the gaps.
c. The United States enjoys an unrivaled position in terms of naval and air power but the Chinese land forces are stronger and better trained than the American forces.
d. The economic collapse and the subsequent reductions in the U.S. military budget have allowed the Chinese to effectively negate any advantages in military power held by the United States.

b