Answer:
Sister Henderson sure got some smart grandchildren's.
Step-by-step explanation:
Dialect refers to a type of speech that is prevalent among a particular group of speakers of a certain language. These speakers usually share some common characteristics, such as race or socio-economic level. In this case, Angelou is using words and constructions that identify her as a member of a particular social group. The concept of dialect can carry some negative connotations when applied to certain groups in society.