Examine (a), (b), (c), and (d) and select the correct answer.

(a) 0.33
(b) 2/3
(c) 33%
(d) 0.3

a. (d) is equal to (b).
b. (C) is greater than (a).
c. (b) is greater than (a).
d. Of the numbers given, (d) is the greatest

(Explanation would be appreciated)