Final answer:
Solving a complex problem begins with decomposing it into smaller sub-problems, which helps to manage complexity and structure the approach to finding a solution.
Step-by-step explanation:
Experts in problem solving usually agree that the first step in solving a complex problem is to decompose it into a series of smaller sub-problems. This approach is widely recognized because complex problems are often too large or too intricate to solve in a single step.
By breaking the problem down into more manageable parts, or sub-problems, you can focus on solving each part, which in turn will help to solve the overall problem. This method also helps in identifying exactly what needs to be found or established (knowns and unknowns) and in what sequence to approach these elements.
Furthermore, this approach of decomposition aligns with problem-solving strategies that include examining solutions to each part of the problem individually, applying specific strategies for each sub-problem, and ensuring that the solutions are reasonable. Finally, though a certain amount of creativity and insight is required, the decomposition of a problem into subproblems is an essential step in the problem-solving process.
Therefore answer is b. decompose it into a series of smaller sub-problems.