Select the sentence containing the homonym of the highlighted word: The choir began the canon at the conductor’s signal.

The correct answer is option (a). In the given sentence, canon refers to a musical form in which a melody is imitated by one or more voices entering successively. Option (a) uses Canon as a proper noun referring to the brand name of a camera, which has the same pronunciation as canon but a completely different meaning. This makes it a true homonym. Meanings of canon: 1. Musical meaning (used in the question): A composition where the same melody is repeated and overlapped by different voices. (Hindi: संगीत में अनुकरणात्मक रचना) Example: The choir performed a canon with perfect timing. 2. Proper noun / brand name (homonym): Canon - a well-known brand of cameras and imaging equipment. (Hindi: कैमरा ब्रांड) Example: He bought a new Canon for wildlife photography. Why other options are incorrect: (b) The canon echoed beautifully through the hall. - Still refers to the musical sense. (c) The singers practised the canon repeatedly before the performance. Same musical meaning. (d) The composer introduced a complex canon in the final movement. - Again, musical usage, not a different meaning.