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The line passing through the extremity A of the major axis and extremity B of the minor axis of the ellipse `x^2 + 9y^2 = 9` meets its auxiliary circle at the point M. Then the area of the triangle with vertices at A, M and the origin O is :

A

`31/10`

B

`29/10`

C

`21/10`

D

`27/10`.

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