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(D) The circuit contains a battery connected between points $A$ and $B$. The capacitors located to the left of the line $XY$ are connected in such a w

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$2$

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(D) The circuit contains a battery connected between points $A$ and $B$. The capacitors located to the left of the line $XY$ are connected in such a way that they are short-circuited by the wire connecting the terminals of the battery circuit. Thus,these capacitors do not contribute to the equivalent capacitance between $A$ and $B$. The remaining circuit consists of two capacitors,each of capacitance $C$,connected in parallel between points $A$ and $B$. Therefore,the equivalent capacitance is $C_{AB} = C + C = 2C$.

Find the equivalent capacitance between $A$ and $B$. (in $C$)

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