What characteristics does Jack London attribute to Buck that emphasize his leadership?

The characteristics attributed to Buck that emphasize his leadership—courage, strength, intelligence, and the ability to inspire others—are crucial to his development throughout "The Call of the Wild." Buck's courage is evident as he faces challenges head-on, proving his capability in the wilderness. His strength is both physical and emotional, allowing him to endure harsh conditions and fight for his survival.

Intelligence plays a key role in Buck's journey as he learns to adapt to his new environment and understand the dynamics of the pack. His ability to inspire others is highlighted in his leadership among the sled dogs, as he earns the respect of both his companions and his human handlers. This combination of traits not only solidifies Buck's role as a leader but also signifies his transformation from a domestic pet to a powerful and guiding force in the wild.

In contrast to the other characteristics listed in the incorrect choices, Buck's attributes focus on resilience and leadership qualities that enable him to thrive in a challenging environment. Weakness, subservience, fear, indifference, aloofness, confusion, arrogance, isolation, and selfishness do not align with Buck's journey, as he consistently rises to challenges and develops a strong sense of purpose and unity with his fellow dogs.