Excerpt from Air Force One http://en. wikipedia. org/wiki/Air Force_One

Air Force One is the air traffic control call sign of any U. S. Air Force aircraft -carrying the president of the United States.

Read the passage underlined (1). There may be a mistake in punctuation, capitalization, or spelling. If you find a mistake, choose the
answer that corrects the mistake. If there is no mistake, choose "Correct as is.'
A)
Correct as is.
B)
carrying the president of the United states
C)
carrying the President of the United States
D)
carrying the President Of The United States
Punctuation Conventions (PLN