Final answer:
The cartoonist suggests that the League of Nations would be weakened without U.S. involvement. The U.S. Senate's fears of entering foreign disputes and losing war declaration powers played a significant role in the decision to not join, hindering the League's peacekeeping effectiveness. option d
Step-by-step explanation:
The cartoonist likely implies that the League of Nations would be weakened without the United States' participation (option a). Historical evidence suggests that the U.S. Senate's concerns over joining the League included the fear of being drawn into foreign disputes, the potential loss of their constitutional power to declare war, and objections to Britain and France's control over the League. This led to the U.S. not ratifying the Treaty of Versailles, thus not joining the League, which in turn compromised the organization's effectiveness in mediating international disputes.
The league, formed post-World War I to promote global security and prevent future wars through collective actions, was largely ineffective in preventing conflicts leading up to the Second World War due to the absence of U.S. participation among other reasons. President Wilson's effort to establish the League faced opposition from conservatives and Senate leaders who were concerned about European entanglements, and ultimately, the League failed to halt aggression and maintain peace.