Answer:
1.A --- Southern dialect --- Regional dialect spoken by those in Alabama.
2.B --- General American dialect --- Dialect spoken in most of the U.S.
3.C --- New England dialect --- Regional dialect spoken in Massachusetts.
Explanation:
1- Southern dialect is called all the dialects spoken in the southernmost states of the United States, from Florida to Texas, predominantly in rural areas and especially among white citizens. Among the famous people who speak with a southern accent is the former president of the United States George W. Bush. It is very easy to recognize by a simple expression like Y’all instead of you as a plural. In addition, they use Sir and Madam to refer to someone with respect.
2- General American is a variety of English spoken in the United States, considered the most representative of American English. It is mostly spoken in the Midwestern states, but has become the benchmark for most television and radio presenters, in films and in advertising. Walter Cronkite is a good example of a television journalist with a typical General American accent.
General American is the variety of American English typically taught to those who study English as a second language in the United States, and also to students from other countries who wish to learn "American English". In most Asian countries, in particular, teachers are strongly encouraged to use this variety of English, whatever their origin or accent.
3- Although it is popularly known as a Boston accent, this type of accent can actually be heard anywhere in the New England area, the northeastern US coastal states around the state of Massachusetts. Typical English expressions adapted to a less sophisticated American can be heard throughout the New England area and the northwest coast. Its best known feature is to replace the ending -ar of many words with an -ah, so that car would sound like cah. They do the same with any or, so the Boston accent would be Bahton's accent.