Four students, Kiran, Lubna, Pooja and Rumana, each study a different subject among Mathematics, Physics, Economics and History, and each comes from a different city among Delhi, Sylhet, Kolkata and Karachi. Pooja is not from Karachi. The student of Economics is not from Sylhet. Pooja does not study Mathematics. Rumana does not study Mathematics. Lubna does not study Mathematics. Pooja does not study History. The student of Mathematics is from Delhi. The student of Physics is not from Sylhet. Rumana is not from Sylhet. Pooja does not study Economics. Which city is Kiran from?
Correct answer C. Delhi