Answer:
a. $39,790.
Step-by-step explanation:
The computation of the incremental income of processing further is shown below:
Sales - Deluxe - 11,900 Units × $31.10 $370,090
Sales - Super - 5,900 Units × $19.90 $117,410
Total Sales $487,500 (a)
Further Processing Costs $11,900
Sale Price of speciality Food $435,810
19,900 Units × $21.90
Total $447,710 (b)
Net Incremental Income $39,790 (a - b)
Hence, the correct option is a.