Question

read this part of the text. this part helps you know that mounted archery is
a a type of weapon used in battles.
b an animal fighting in an arena.
c using a sword and shield to fight.
d shooting arrows from horseback.
archers (ahr - churz) are people who shoot bows and arrows. they practice mounted archery. mounted (mount - id) means being on top of a horse or a moving vehicle.

Explanation:

Since archers shoot bows and arrows and mounted means on top of a horse or moving - vehicle, mounted archery is shooting arrows from horseback.

Answer:

D. shooting arrows from horseback