In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given.

Black Friday, the day following Thanksgiving Day, is widely (1)..... as the beginning of the Christmas shopping season. Most (2)........ retailers open early and (3)...... promotional sales to (4)...... the holiday shopping, season. Often, the three days following Thanksgiving, are holidays thereby increasing the number of (5)..... shoppers. It has (6)..... been the busiest shopping day of the year since 2005. The earliest (7)........ of the use of the phrase Black Friday in a shopping (8)..... suggests that it originated in Philadelphia, where it was used to describe the heavy and (9)...... traffic that occurred on the day after Thanksgiving. The usage of the term Black Friday (10).... back to at least 1961.