The 8.8 cm Flak 18/36/37/41 (commonly called the eighty-eight) was a German 88 mm anti-aircraft and anti-tank artillery gun from World War II. It was widely used by Germany throughout the war, and was one of the most recognized German weapons of that conflict. Development of the original model led to a wide variety of guns.
Can we infer the following?
The 8.8 cm Flak might be very old, but it still works.

pick from the following.
 --Yes
 --It's impossible to say
 --No
The answer is:
It's impossible to say