The Great Pyramid of Giza was built: a) Most likely by moving the stones with sleds up massive ramps.
b) During the Middle Kingdom.
c) To be the biggest structure in the world.
d) On the orders of Thutmose III.

a) Most likely by moving the stones with sleds up massive ramps.

Explanation:

The Great Pyramid was built for Pharaoh Khufu during the 4th dynasty, so approximately around 2560 BC. The purpose of the building was as the tomb for the pharaoh. It is the oldest and largest pyramid of all three that stand in Giza.

One of the biggest archeological questions has been how did Egyptians manage to construct the pyramids at the time. The newest discoveries claim that they have likely used ramps to roll up the stones. They would use a sled attached with rope to wooden posts of the ramp to pull up the massive stone blocks. The sled with the stone would be pulled and pushed over the ramp until it would reach the destination place. Workers who pulled the ropes would stand on the stairs surrounding the ramp.

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.