Circular logic

The diagram below features four houses viz  O, A, B and C.

House ‘O’ is located at the centre of the circle and others some where on the circumference.
There are roads connecting to the houses.
Veena and Meena start from A. Veena takes a circular path. 
Meena walks along ABOCA
Their speed is the same.
Who arrives at ‘A’ first?

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