Pink's Party Shop is known around the world for its large variety of confetti. The confetti comes in a wide range of shapes and sizes. The shop's most popular shape is the white heart, which, according to owner Greg Smith, is "the choice for all brides in the [San Francisco] area."1
The party shop has confetti that is made from colored and metallic sheets of paper.2 Tiny pieces are cut from the sheets to form the confetti—pieces that are smaller than one millimeter are considered glitter. Pink's Party Shop has a specialized machine that cuts paper into various shapes, from the standard circle to the strange elephant. This impressive machine cuts shapes from large sheets of paper in 10 seconds.3 The scraps then make up the confetti bag of assorted indistinguishable shapes. From industry estimates, Pink's Party Shop biggest business is based upon weddings, birthdays, graduations, and other celebrations.4

1. Thakkar, Shayli. A Party Transformed. Chicago: Magic Print, 2008. Print.
2. Ranger, Micah. Balloons, Streamers, Confetti, and More. Baltimore: Houdini Presses, 2001. Print.
3. Rogers, Tristan. Amazing Inventions. Detroit: Stewart & Olsen, 2006. Print.
4. Candezee, Linda. Industry Giants. New York: Rockefeller, 2001. Print.
2
Read the following sentence from the passage.

The shop's most popular shape is the white heart, which, according to owner Greg Smith, is "the choice for all brides in the [San Francisco] area."1

In the quotation, why are the words "San Francisco" in brackets?
A.
to point out that there are many areas in San Francisco
B.
to indicate that the author has misspelled the city's name
C.
to show that the words are not part of the original quote
D.
to emphasize the importance of the San Francisco area