Final answer:
To effectively plan, a budget would be the most suitable tool as it involves forecasting and managing financial resources, critical for strategic planning.
Step-by-step explanation:
To determine the most effective planning tool among the options given, it's important to understand the purpose of each tool in a business context. A performance evaluation report assesses past outcomes, a fishbone diagram aids in root cause analysis, a control chart monitors processes over time, and a budget forecasts and plans financial resources.
If Sam is asking for advice on planning, the most effective tool would be D) budget. Budgeting is the process that entails planning for future income and expenditures, which helps in setting financial goals and limits. It allows for resource allocation and financial planning, making it an essential part of strategic planning for both businesses and individuals.
By analyzing the costs and benefits using a budget, you would be able to provide a clear recommendation based on financial feasibility and constraints, thus guiding Sam in a practical direction for future spending decisions.