Answer: 1040-A
Explanation:
Tax form 1040 is an Internal Revenue Service form that an individual is required to file for a federal income tax return.
One of the shortened form of Tax form 1040 is the 1040-A.
1040-A form enables one to claim some adjustment. This include filing as an household head instead of a single person, claiming dependent and retirement savings, tax deductions, earned income, education, etc.
Form 1040-A is appropriate for the couple as it would allow them have a joint tax return and make tax deductions on their student loans.