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If \[A+C=B,\] then \[\tan A\,\tan B\,\tan C=\] [EAMCET 1986]

A. \[\tan A\,\tan B+\tan \,C\]
B. \[\tan \,B-\tan \,C-\tan \,A\]
C. \[\tan A+\tan C-\tan B\]
D. \[-\,(\tan A\tan B+\tan C)\]
Answer» C. \[\tan A+\tan C-\tan B\]


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