\[\vec{A}-\vec{B}\] and \[\vec{A}\] are parallel. If \[|\vec{A}\times \vec{B}|\,=\,|\vec{A}.\vec{B}|,\] then angle between \[\vec{A}\] and \[\vec{B}\] will be

• A. \[30{}^\circ \]
• B. \[45{}^\circ \]
• C. \[60{}^\circ \]
• D. \[90{}^\circ \]