13. If the beginning inventory for 2018 is overstated, the effects of this error on cost of goods sold for 2018,
net income for 2018, and assets at December 31, 2019, respectively, are
(A) overstatement, understatement, overstatement.
(B) understatement, overstatement, overstatement.
(C)understatement, overstatement, no effect.
(D) overstatement, understatement, no effect.