In the following figure (not to scale), ...

In the following figure (not to scale), at the centre O, if the chord AB subtends double theangle that is subtended by chord CD and the angle `angle AEB = 2 angle AOB`, then `angle COD` is equal to:

A

`75^@`

B

`60^@`

C

`30^@`

D

`45^@`

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The correct Answer is:

C

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