The correct answer is B. Ungrammatical
Explanation:
In language, a statement or sentence is classified as ungrammatical when it does not follow the grammatical rules established in a language, which means despite the meaning of an ungrammatical sentence can be understood it violates one or more grammatical rules and is considered as unacceptable or incorrect. This differs from informal language because informal language usees slangs and common words rather than sophisticated ones, but there are still accepted and from dialect because a dialect is a way a language is particularly spoken by a group. Considering this, the sentence "she don't want to go" is mainly an ungrammatical sentence because the use of "don't" instead of "doesn't" violates the use of grammar and therefore is incorrect and unacceptable, also this sentence is not part of the informal language or a dialect.
