If the characters in George S. Kaufman's The Still Alarm were changed to react in a less humorous or comic manner, the most likely effect would be that the play would not have a comic tone (Option C).
Changing the characters' reactions to be more serious or less comedic would alter the overall tone of the play, shifting it away from its original comedic nature. This adjustment could potentially impact the pacing, dialogue, and audience reception of the play, making it less light-hearted and humorous.
Therefore, the correct answer would be:
OC. The play would not have a comic tone.
