Five friends, Nusrat, Tanvir, Sana, Zara and Rumana, are compared by height. No two are equal. Nusrat is taller than Tanvir. Tanvir is taller than Rumana. Zara is shorter than Nusrat. Sana is taller than Rumana. Which of the following must be true?
Correct answer D. Nusrat is taller than Rumana.
Explanation
Linking the clues gives Nusrat > Tanvir > Rumana in height, so Nusrat is taller than Rumana. The other statements fit some arrangements but not all of them.
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