Which of the following statements are true and which are false?
(i) Every whole number is a rational number.
(ii) Every integer is a rational number.
(iii) 0 is a whole number but it is not a rational number.
(i) Every whole number a can be represented as 
Therefore, every whole number is a rational number.
(ii) Every integer a can be represented as 
Therefore, every integer is a rational number.
(iii) 0 can be represented as 
Therefore, 0 is a whole number and a rational number.
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