1.Mr. and Mrs. Twig are both under 65 years of age and have no dependents. Their only income for the year was his salary of $15,500. During the year they made only a nominal amount of disbursements of the type that qualify as itemized deductions. What is their standard deduction on a 2018 joint return?

a.$4,150

b.$24,000

c.$12,000

d.$9,350

e.None of the above