An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively [CBSE PMT 2004]

• A.                    \[2q\cdot E\] and minimum                                      
• B.            \[q\cdot E\] and \[p\cdot E\]
• C.            Zero and minimum            
• D.            \[q\cdot E\] and maximum