Answer:
Step 5: Implementation and review of the financial plan
Explanation:
Considering the situation described above, the step of personal financial goals in which John and Diana are most in is "Implementation and review of the financial plan"
This is based on the fact that step of personal financial goals is:
1. Establishing and deciding your financial objectives and goals
2. Compiling your financial and personal information
3. Analysing your financial and personal information
4. Advancement and presentation of the financial plan
5. Implementation and review of the financial plan: this stage usually involves the process of income and expenditure adjustments.
Hence, when John and Diana decide to review their financial expenditures monthly to evaluate steps they can take to better save their earnings, they are in step 5 of personal financial goals, which is Implementation and review of the financial plan
