It Is Important to Filter the Gas Before It Enters

It is important to filter the gas before it enters the blender housing; otherwise,a malfunction will occur.Which of the following can cause a malfunction?
1) Moisture
2) Particulate matter
3) High amounts of FɪO₂
4) Low amounts of FɪO₂

A) 1 and 3
B) 1 and 2
C) 1 and 4
D) 2 and 3