Answer: The sentences that correctly use semicolons to separate items in a series that contains commas are:
1. Kailee had job offers from a management firm in Wichita, Kansas; from an investment bank in Tampa, Florida; and from a software company in Denver, Colorado.
2. December is a month with many holidays: Christmas Eve and Christmas Day, celebrated by those of the Christian faith; Hanukkah, celebrated by those of the Jewish faith; and New Year's Eve, celebrated by many throughout the world.
3. Her grandmother cooked bacon, eggs, and grits on Monday; sausage, biscuits, and gravy on Tuesday; and pancakes, fried ham, and coffee cake on Wednesday.
4. Jeff bought fragrant, ripe pears; tiny, tart oranges; and plump, red raspberries from the market.
These sentences use semicolons to separate the items in the series, while commas are used within each item.