George and Wanda received $30,300 of Social Security benefits this year ($11,600 for George; $18,700 for Wanda). They also received $5,100 of interest from jointly owned City of Ranburne Bonds and dividend income. What amount of the Social Security benefits must George and Wanda include in their gross income under the following independent situations? Note: Do not round intermediate calculations. Round your final answers to the nearest whole dollar amount. Leave no answer blank. Enter zero if applicable. Required: a. George and Wanda file married joint and receive $9,350 of dividend income from stocks owned by George. b. George and Wanda file married separate and receive $9,350 of dividend income from stocks owned by George. c. George and Wanda file married joint and receive $33,400 of dividend income from stocks owned by George. d. George and Wanda file married joint and receive $16,700 of dividend income from stocks owned by George.