Question

1. what were some other constructions along the great wall that aided in the defense against attacks?

lookout towers
block houses for housing soldiers
moats of water
beacon towers to send signals
all of the above

Explanation:

All listed structures served defensive roles alongside the Great Wall: lookout towers monitored for threats, block houses housed defending soldiers, moats created a physical barrier against attackers, and beacon towers sent rapid warning signals of approaching forces.

Answer:

E. All of the above