Solve the following LP formulation and determine the number of Slack or Surplus units.

MAXP $=3x+2Y,$

$x+Y5A$

$x2,B$

$2Y8C$

$x,Y0,$

$2$ units of slack in constraint C

$2$ units of surplus in constraint B

$4$ units of slack in constraint $C$

$2$ units of slack in constraint A and $4$ units of slack in constraint $C$