A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false but R is true.
Correct Answer: B
Solution :Both A and (R) are correct but (R) is not the correct explanation of . Maglev train does not require wheels because it works on the principle that like poles repel and unlike poles attract each other.
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