In the seventeenth century, the Pilgrim housewife made her candles by dipping. When her husband brought back a deer, moose, or bear from his hunting trips, she would boil the animal's fat in water, and dip a piece of twisted cotton into the waxy substance that floated to the water's surface. When one layer hardened on the cotton wick, she dipped it again. The more she dipped, the more wax stuck to it, until she eventually had a useful, tapered candle.

Q. Circle the outline which illustrates the structure of the paragraph and underline the topic sentence: ▼ ▲ ♦ ▊.