An Electric Dipole of Moment Is Placed in a Uniform

An electric dipole of moment is placed in a uniform external electric field as shown in the diagram. The dipole moment vector is in the positive y direction. The external electric field vector is in the positive x direction. If the dipole is to have minimum potential energy, should be in the

A) positive x direction.
B) negative x direction.
C) positive y direction.
D) negative y direction.
E) positive z direction.