Two sinusoidal EMFs are given as \({{e}_{1}}=Asin\left( \omega t+\frac{\pi }{4} \right)\) and \({{e}_{2}}=B\sin \left( \omega t-\frac{\pi }{6} \right)\)The phase difference between the two quantities, in degrees, is _____.

• A. 75
• B. 105
• C. 60
• D. 15