The answer is C. Airplanes. All were used, but the other three were used as weapons.
Answer:
The Dare Stones are a series of stones inscribed with messages, supposedly written by members of the lost Roanoke colony. The colonists were last seen on Roanoke Island (off the coast of what is now North Carolina) in August 1587, and the mystery of their disappearance has since become a part of American folklore.
Explanation:
this might help you
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the Truman Doctrine is a set of principles of U.S. foreign policy
declared by Harry Truman in a 1947 address to Congress to request $400
million in aid to Greece and Turkey, as well as authorization to send
American economic and military advisers to the two countries. Truman
argued that the U.S. should support Greece and Turkey economically and
militarily to prevent their falling under Soviet control. he supported
this request by proclaiming: "one of the primary objectives of the
foreign policy of the United States is the creation of conditions in
which we and other nations will be able to work out a way of life free
from coercion. this was a fundamental issue in the war with Germany and
Japan. our victory was won over countries which sought to impose their
will, and their way of life, upon other nations." he called upon the
U.S. to "support free peoples who are resisting attempted subjugation by
armed minorities or by outside pressures," which generalized his hopes
for Greece and Turkey into a doctrine applicable throughout the world.
the Soviet Union was clearly at the heart of Truman's thoughts, but it
was never directly mentioned in his speech. as Edler states, Truman was
attempting to solve Eastern Europe's instability while making sure the
spread of communism would not affect nations like Greece and Turkey. </span>
In 1838 and 1839, as part of Andrew Jackson's Indian removal policy, the Cherokee nation was forced to give up its lands east of the Mississippi River and to migrate to an area in present-day Oklahoma the Cherokee people called this journey the "Trail of Tears" because of its devastating effects.
