Evaluate the following statements:
I. De minimis fringe benefits are those that are so immaterial that accounting for them is impractical.
II. De minimis fringe benefits are subject to strict anti-discrimination requirements.
III. Generally, a fringe benefit of less than $50 is considered de minimis and can be excluded from gross income.
a. Only I is true.
b. Only III is true.
c. Only I and III are true.
d. I, II, and III are true.
e. None of these.
Answer: a