Which of the following sentences correctly employs standard English spelling
A. The building's height was acceded by its width
B. The building's height was exceeded by its width.
C. The building height was exceeded by its width.
D. The building's height was acceded by it's width
Option B is the correct sentence, which reads "The building's height was exceeded by its width." This sentence employs standard English spelling, where "exceeded" is spelled correctly, and the apostrophe in "it's" is incorrect, as it should be "its" without an apostrophe.
Therefore, the Correct Answer is B.