Multi-select problem: How does the next paragraph end?

She is demonstrating how to clean the faucet and bowl of the sink by pouring fluid around all the edges. She uses a scraper to spread the fluid evenly. the woman

Options: a). wipes down the sink to make it clean.; b). continues banging down the faucet and laughing to the camera.; c). is standing at the sink measuring and separating buckets of liquid.; d). uses a dryer to dry the floor using a folded towel to wipe off any dirty water.;
a).