The purifier vibrates excessively. Which of the following causes is wrong? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
The bowl is assembled improperly.
B.
The friction clutch is out of order. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
The vertical shaft bearings are damaged.
D.
The throughput is too high prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>