When applying the key phases of design thinking, teams often encounter challenges in maintaining momentum and fostering innovation throughout the process. Which approach best addresses these challenges?

a$.$ Utilizing cross$-$functional collaboration, bringing together diverse expertise and perspectives throughout the design process, ensuring comprehensive problem$-$solving and innovative solutions.

b$.$ Adopting a non$-$linear approach, where teams cycle through the phases iteratively, allowing for flexibility and revisiting earlier stages as needed to incorporate new insights and perspectives.

c$.$ Implementing a structured approach, beginning with empathizing with end$-$users, followed by defining the problem, ideating potential solutions, prototyping, and finally, testing with users to iterate and refine.

d$.$ Integrating design thinking with agile methodologies, emphasizing rapid iteration and continuous improvement, enabling teams to quickly adapt to changing requirements and market conditions.