California: Jimmy (67) and Barbie (75) are married, have one dependent, and cannot be claimed as dependents. Their CA filing status is Married/ RDP Filing Jointly, and their gross income and AGI are $57,193. Which of the following is true? They are not required to file a CA tax return. They are required to file a CA tax return based on their gross income. They are required to file a CA tax return based on their gross income and AGI. They are required to file a CA tax return based on their AGI