Which of the following statements is/are true?
(i) The quadrilateral in which only one pair of opposite sides is parallel, is a trapezium.
(ii) There are 7 right angles in one and half of a revolution.
AOnly (i) is true.
BOnly (ii) is true.
CBoth (i) and (ii) are true.
DNeither (i) nor (ii) is true.