Katie Fowles is beginning her study of the statement of cash flows. She understands the basic idea: a statement of cash flows reports the amount of cash collected and the amount of cash paid during the period. However, she doesn't understand why there are three different sections in the statement of cash flows. In particular, she wants to correctly classify the activities that are part of the day-to-day business of the company. 

What is the correct classification of these activities? Liquidity activities Financing activities Operating activities Profitability activities Investing activities.