Respuesta :
Answer:
The Curtiss-JN Biplane, known as the Jenny, was the most famous American airplane of World War I. Although it never got into combat, the two-seater was used primarily for training purposes.
Explanation:
Answer:
B.
They were used to observe enemy troops from the air.
D.
They were armed with weapons and used for battle.
Explanation:
Because reconnaissance planes fly and had guns