Level

Item

Qty

$0---$

A

$1$

$-1--$

B

$2$

$--2-$

C

$5$

$--2-$

D

$1$

$-1--$

E

$1$

$--2-$

F

$2$

$---3$

G

$1$

In the above indented bill of material $($BOM$),$ how many units of C are required to make $23$ units of A$?$