The following sentence has been split into four segments. Identify the segment that contains a grammatical error. My secretary is disposed of / discuss everything in great detail / before she begins / the actual work.

Explanation

The phrase “is disposed of” is incorrect in this context. “Disposed of” means to get rid of something or someone, which is not the appropriate choice. The correct phrase should be “is disposed to” or “is willing to” if the intention is to indicate that the secretary is inclined to discuss everything in detail. The other segments are correct: (2) discuss everything in great detail, (3) before she begins, and (4) the actual work.