Two point charges, \(+q\) and \(-q\), are held fixed on the \(x\)-axis at coordinates \(x = -d\) and \(x = +d\), respectively, where \(d > 0\). The electric potential is defined to be zero at an infinite distance from the charges, and the unit vector \(\hat{i}\) points in the \(+x\)-direction. Which row in the table correctly identifies the net electric potential \(V\) and the net electric field vector \(\vec{E}\) at the origin \(P(0,0)\)?

	Net Electric Potential \(V\)	Net Electric Field Vector \(\vec{E}\)
Row A	\(\dfrac{q}{2\pi\varepsilon_0 d}\)	\(\vec{0}\)
Row B	\(\dfrac{q}{2\pi\varepsilon_0 d}\)	\(\dfrac{q}{2\pi\varepsilon_0 d^2}\hat{i}\)
Row C	\(0\)	\(\vec{0}\)
Row D	\(0\)	\(\dfrac{q}{2\pi\varepsilon_0 d^2}\hat{i}\)