Which sentence best conveys the author's viewpoint about the Egyptians' abilities?

"Today, it is considered one of the 'Seven Ancient Wonders of the World.'"

"The ancient Egyptians put the stone on a sled and attached the sled to wooden posts."

"Before the pyramids were even built, the Egyptians were performing amazing feats of engineering."

"How did ancient people with little understanding of modern engineering and no modern construction machines build them?"