If in a DeltaABC, AD, BE and CF are the ...

If in a `DeltaABC, AD, BE and CF` are the altitudes and R is the circumradius, then the radius of the circumcircle of `DeltaDEF` is

A

`R/2`

B

`(2R)/3`

C

`1/3R`

D

None of these

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The correct Answer is:

A

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