Which ones are Operating Investing Financing in a cash flow system

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 -

l. Purchased equipment with cash -

m. Paid bills to insurers and utility providers -