Final answer:
The 12th Juror's statement implies that the idea was hardly worth considering, which matches option b).
Step-by-step explanation:
The 12th Juror's statement, “Well, it wasn't much of an idea, anyway,” suggests that the idea was hardly worth considering. Therefore, the correct option is b) The idea was hardly worth considering. This implies that the idea presented did not have much value or potential in the eyes of the juror, reflecting a possible lack of evidence or persuasion in the presented idea during the jury's deliberation on a verdict.