Three statements are given below:
I. In a rectangle ABCD, the diagonal AC bisects ∠A as well as ∠C.
II. In a square ABCD, the diagonal AC bisects ∠A as well as ∠C.
III. In a rhombus ABCD, the diagonal AC bisects ∠A as well as ∠C.
Which is true?
(a) I only
(b) II and III
(c) I and III
(d) I and II