Why do the first two sentences contain qualifiers (“oddly enough,” “however”)?. Ellison is floating some theories here, an activity he has invited the reader to join.
The answer is A. Use the gerund at the beginning to show action,
complete the sentence with subject and verb that show why the action was
completed. This concise method is widely used and generally understood
by readers at first glance. Other arrangements may technically work but
will likely cause confusion.
An impromptu seems to be a complimentary musical with music with both the characteristic of a former virtuosity, typically for a valve trombone, such as a guitar, as if inspired by the nature of the situation.
