Final answer:
The descriptive approach to group problem solving is epitomized by the belief that there is a natural, organic process to how groups address and solve problems, encompassing the varied dynamics and interactions among group members. Option C is correct.
Step-by-step explanation:
The statement that best explains the descriptive approach to group problem solving is C. There is a natural process to group problem solving. This approach suggests that group dynamics and problem solving unfold in an organic way, relying on the natural interactions and development within the group, rather than on strict guidelines, rational mandates, or a predetermined agenda. In real-world situations, group members come together with different views and skills, which influence the problem-solving process. Understanding group polarization and strategies to avoid groupthink are also important in managing how groups reach a consensus.