Question

Which sentence below uses proper capitalization?


The United States Of America has had forty-four presidents since President Washington.


The United States of America has had forty-four Presidents since President Washington.


The United States Of America has had forty-four Presidents since President Washington.


The United States of America has had forty-four presidents since President Washington.

Answer 1

"The United States of America has had forty-four presidents since President Washington."

Explanation: In the proper name "United States of America," the preposition "of" is lowercase. The common noun "presidents" is lowercase unless used directly as a title before a name (as in "President Washington").