I'm guessing that i have to mark the appropriate box for the Activity, but I have no clue. Someone please help.

D E - Exercise 13-1 Activity Operating Investing Financing Example a = Cow a. Collected cash from customers b. Paid cash to repurchase its own stock c. Borrowed money from a creditor d. Paid suppliers for inventory purchases e. Repaid the principal amount of a debt f. Paid interest to lenders g. Paid a cash dividend to stockholders h. Sold common stock i. Loaned money to another entity j. Paid taxes to the government k. Paid wages and salaries to employees 1. Purchased equipment with cash m. Paid bills to insurers and utility providers