What were some of the technological achievements of the hittites?

The Hittites made the following technological achievements.
1) They made chariots.
2) They were the first to work with iron.
3) The made weapons out of iron.

Chariots make an excellent fighting machine because it can accommodate two people where one can steer the chariot and the other can shoot at the enemies. The chariot being pulled by two horses is faster than human feet and can easily overtake the enemies.

Answer might be b i think