Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is CLOSEST in meaning to the sentence given in each of the following questions.
It is said that the Great Pyramid of Giza was built over a 20-year period.
A. The Great Pyramid of Giza is said to have been built over a 20-year period.
B. The Great Pyramid of Giza are said to have been built over a 20-year period.
C. The Great Pyramid of Giza is said to have been built over a 20-years period.
D. The Great Pyramid of Giza is said to has been built over a 20-year period.