identify the internal control principle that is applicable to each procedure

$($a$)$ all over the counter receipts are entered in cash registers

$($b$)$ all cashiers are bonded

$($c$)$ daily cash counts are made by cashier department supervisors

$($d$)$ the duties of receiving cash, recording cash, and having custody of cash are assigned to different individuals

$($e$)$ only cashiers may operate cash registers