Read the following $3$ statements:

Category $C$ items are high value items according to the A$-$B$-$C inventory classification system.

Management should focus pn controlling category $C$ thems in the A$-$B$-$C inventory classification system.

Support units is one ltem that may be kept in inventory by underground mines. hich of the above statements is$/$are correct?

c$.$

a and $c$

a and $b$

$a,b$ and $c$

Not $1,2,3$ or $4$