Which of the following statements is true with respect to earnings quality? (You may select more than one answer.)

a. Managers generally perceive that earnings are of higher quality when earnings are not unduly influenced by inflation.

b. Managers generally perceive that earnings are of higher quality when earnings are computed using aggressive estimates.

c. Managers generally perceive that earnings are of higher quality when earnings move in the opposite direction to net cash provided by operating activities.

d. Managers generally perceive that earnings are of higher quality when earnings are computed using conservative accounting principles.