Question: Between Dr Pepper and Grapico, which carbonated drink is sold specifically in the Southeastern United States?

Context paragraphs:
Charles Alderton: Charles Courtice Alderton (June 21, 1857 May 29, 1941) was an American pharmacist, and the creator of the carbonated soft drink Dr Pepper.

Dr Pepper (disambiguation): Dr Pepper is a carbonated soft drink.

Canfield's Diet Chocolate Fudge: Canfield's Diet Chocolate Fudge soda is a zero-calorie, aspartame-sweetened carbonated soft drink canned and distributed by the A.J. Canfield Company of Elgin, Illinois, USA, a division of Select Beverages.  Production for the midwestern United States is handled by the American Bottling Company, a subsidiary of Dr Pepper Snapple Group and distribution by Kehe Foods of Chicago.

Dr Pepper: Dr Pepper is a carbonated soft drink marketed as having a unique flavor.  The drink was created in the 1880s by Charles Alderton in Waco, Texas and first served around 1885.  Dr Pepper was first nationally marketed in the United States in 1904, and is now also sold in Europe, Asia, Canada, Mexico, Australia, and South America, as well as New Zealand and South Africa as an imported good.  Variants include a version without high fructose corn syrup, Diet Dr Pepper, as well as a line of additional flavors, first introduced in the 2000s.

Cott: The Cott Corporation is a supplier of private label carbonated soft drinks distributing to the United States, Canada, Mexico, the United Kingdom, and Europe.  In addition to producing private-label beverages for retailers, Cott also has portfolio of its own brands, including Cott, RC (excluding the United States, where it is part of Dr Pepper Snapple Group), Ben Shaws, Stars & Stripes, Vintage and Vess soft drinks, ready-to-drink teas, sparkling and flavoured waters, sports and energy drinks, juice drinks and smoothies. Newer Cott brands include Orient Emporium, GL-7, Red Rain Energy and After Shock Energy.

Dr Pepper Snapple Bottling Group: Dr Pepper Snapple Bottling Group (formerly Dr Pepper/Seven Up Bottling Group and Cadbury Schweppes Bottling Group) is the third largest bottling company in the United States after Pepsi Beverages Company and Coca-Cola Enterprises.  The company is a wholly owned subsidiary of Dr Pepper Snapple Group.

Dr Pepper Ballpark: Dr Pepper Ballpark (formerly Dr Pepper/Seven Up Ballpark) is the home ballpark of the Frisco RoughRiders Class AA minor league baseball club.  Located in Frisco, Texas in the United States, the stadium has a capacity of 10,316.  The ballpark is host to numerous functions in addition to minor league baseball games, including corporate and charity events, wedding receptions, city of Frisco events, and church services.  Local soft drink manufacturer Dr Pepper Snapple Group holds naming rights and exclusive non-alcoholic beverage rights in the park.

Vimto: Vimto is a soft drink sold in the United Kingdom.  It was first manufactured as a health tonic in cordial form, then decades later as a carbonated drink.  It contains the juice of grapes, raspberries and blackcurrants (in a 3% concentration), flavoured with herbs and spices.  The original recipe was invented in 1908 by (John) Noel Nichols.  Nichols grew up in the Lancashire town of Blackburn.  It is often referred to as the rich man's Red Kola.

Grapico: Grapico is a caffeine-free, artificially flavored carbonated soft drink with a purple color and a grape taste that is sold in the Southeastern United States.  When introduced in 1916, the product quickly became a success, which in part was due to implying that Grapico contained real grape juice even though it did not.  In the spring of 1926, J. Grossman's Sons sold the Grapico business to New Orleans business Pan American Manufacturing Co.  Pan American continued J. Grossman's Sons' improper practice of implying that Grapico contained real grape juice and lost the right to use the word "Grapico" to designate their artificial grape drink in 1929.

Ironport (beverage): Ironport (sometimes spelled as two words: Iron Port) is an old-fashioned carbonated soft drink from the early part of the 20th century that was served at soda fountains and is still popular in the Intermountain West.  It can still be found in parts of Utah, Southern Idaho, Southern Montana, Western Wyoming, and Eastern Nevada.  The flavor has been described as somewhat of a cross between root beer and Caribbean spices and is very similar to the Cuban soda, Iron Beer.  The flavor has also been described as a black cherry Dr Pepper.  It is rumored to have been named after Porter Rockwell.

Supporting paragraphs: Dr Pepper Grapico
Answer: Grapico