The taxpayer had incorrectly been using the cash method of acccounting. For 2015 the company voluntarily changed to te accrual method. The adjustment due to the change in method as calculated at the beginning of 2015 was $120,000 (positive). The adjustment as calculated as of the end of 2015 was $80,000 (positive). As a result of the change in method the company must.

a) Increase its income for 2015 by $120,000

b) Increase is income for 2015 by $80,000

c) Increase its income for 2015 by $30,000

d) Incrase its income for 2015 by $40,000

e) None of the above