Choose the correct answer and write down only the letter

$($

A

$$

$$D

$)$

$$next to the question number

$($

$1$

$$

$5$

$)$

$$on your answer page, for example,

$1$

$.$

$$B

$\mathrm{.}5.$ Managers implement plans through which of the following methods:

a$.$ Authority

b$.$ Persuasion

c$.$ Policies

d$.$ All of the above

e$.$ Not all of the above $($