One challenge of teamwork may stem from:

A significant challenge in teamwork arises when member responsibilities are not clearly defined. This lack of clarity can lead to confusion among team members regarding their roles, which may result in overlapping duties or important tasks being overlooked entirely. When team members are unsure of what is expected of them, it can create frustration and conflict, as well as hinder productivity and collaboration.

Defining responsibilities helps establish accountability and ensures that each member understands their contributions toward the team's objectives. It also allows the team to organize tasks effectively, leading to a more cohesive and efficient workflow.

In contrast, the other options present scenarios that may not necessarily impede teamwork in the same way. For instance, a lack of diverse skills can affect a team's creative problem-solving capacity, but it does not directly inhibit the functions of teamwork if the existing skills are utilized well. Clear communication channels are crucial for effective teamwork and should be nurtured rather than seen as a challenge. Lastly, a strong sense of team identity is typically beneficial, fostering camaraderie and commitment among members rather than presenting a challenge to collaboration.