The major product formed by the reaction of a anisol with tert-butyl alchol in presence of `Li//Liq NH_(3)` is
A. `1 -` methoxy cyclohexa `- 1, 4 -`diene
B. `2 -` methoxy cyclohexa `- 1, 3 -`diene
C. `1 -` methoxy cyclohexa `- 1, 3 -`diene
D. `3 -` methoxy cyclohexa `- 1, 4 -`diene