According to "The call of the wild", as new lead dog, buck improved the solidarity of the team what does this mean?

A) the team traveled faster.

B) the team was stronger.

C) the team was more unified.

In my opinion, the correct answer is C) The team was more unified. Buck's taking over the leadership from Spitz means greater unity for the "team", as Buck is not an overbearing and snippy dog, but a wise and poised one. It won't result with the faster moving of the pack, or their greater strength. It only means they will stick together instead of fighting.