A ডোমেন (R)=A, রেঞ্জ (R)=A
B ডোমেন (R)={1,3,4}, রেঞ্জ (R)={1,2,3}
C ডোমেন (R)={2,3,4}, রেঞ্জ (R)={1,3,4}
D ডোমেন (R)={1,2,3}, রেঞ্জ (R)={2,3,4}
Correct Answer: Option D
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