Please help me learn how to solve this, I would greatly appreciate it!

Ch14: The following information relates to questions 3133 Note I: Income Taxes The components of earnings before income taxes are as follows ( $ thousands): The components of the provision for income taxes are as follows ( $ thousands): The components of the provision for income taxes are as follows ( $ thousands): The company's effective tax rate was highest in: Year 1. Year 2. Year 3