Indicate Whether Each Business Practice Listed Below Strengthens (S) or Weakens

Indicate whether each business practice listed below strengthens (S) or weakens (W) a company's system of internal control.
a. Bonding of employees
_____
b. Limiting the number of people who have access to cash
_____
c. Combining the recordkeeping and custodianship functions
_____
d. Making all payments with cash
_____
e. Keeping rotation of key employees to a minimum
_____
_____ f. Using prenumbered sales tickets