The following line items are from the horizontal analysis of income statements: Fees earned Wages expense Supplies expense Increase (Decrease) Increase (Decrease) 20Y7 20Y6 Amount Percent $150,000 $140,000 $10,000 7.1% 80,000 60,000 20,000 33.3% 700 800 (100) (12.5%) Which of these line items shows cause for concern? Oa. Wages expense Ob. Supplies expense c. c. Fees earned Od. All of these items show cause for concern