Is this text fact or opinion ? As a​ result, their​ central-city ethnic neighborhoods experience a life cycle.​ Often, one group is replaced by another.​ A​ later-arriving one then replaces them.​ We can see this process in action in the succession of groups that dominated certain neighborhoods and then moved on to more desirable areas.​ Boston's West End was mainly an Irish area in the nineteenth century.​ As the twentieth century​ began, Jews replaced the Irish.​ Poles and Italians then replaced them in the late 1930s. .

A.fact and opinion

B.
fact

C.
opinion

D.
incorrect fact​