An Electric Dipole With $\pm 5.0 \mu \mathrm { C }$

An electric dipole with $\pm 5.0 \mu \mathrm { C }$ point charges is positioned so that the positive charge is $1.0 \mathrm {~mm}$ to the right of the origin and the negative charge is at the origin. How much work does it take to bring a $3.0 - \mu \mathrm { C }$ point charge from very far away to the point $x = 3.0 \mathrm {~mm} , y = 0.0 \mathrm {~mm}$ ? $\left( k = 1 / 4 \pi \varepsilon _ { 0 } = 9.0 \times \right.$ $10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 }$ )

A) $19 \mathrm {~J}$
B) $23 \mathrm {~J}$
C) $110 \mathrm {~J}$
D) $49 \mathrm {~J}$