Correct option is (C) AB > CD > EF
Chord AB is nearest to the centre of circle, chord EF is farest to the centre of circle.
\(\because\) d(AB, 0) < d(CD, 0) < d(EF, 0)
\(\therefore\) \(AB>CD>EF\)
\((\because\) Chord which is more distanced from the centre of the circle is smaller than the other chord)