Consider the following values of x: 1) 82) -43) 1/64) \(- \frac{1}{4}\)Which of the above values of x is/are the solution(s) of the equation\({\tan ^{ - 1}}\left( {2x} \right) + {\tan ^{ - 1}}\left( {3x} \right) = \frac{\pi }{4}?{\rm{\;}}\)

• A. 3 only
• B. 2 and 3 only
• C. 1 and 4 only
• D. 4 only