_______ is the main cause to the damage of engine parts and excess wearing. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
Overload and the odds of the load
B.
Overload prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
The default of engine parts
D.
The odds of the load prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>