What are the key features od a tank

tank design are a balanceof heavy firepower, strong armor, and good battlefield

Tank designs are a balance of heavy firepower, strong armor, and good battlefield mobility provided by tracks and a powerful engine; usually their main armament is mounted in a turret. They are a mainstay of modern 20th and 21st century ground forces and a key part of combined arms combat.

i beleive its 1)aids

the answer is b just took the test