Final answer:
The group not classified as Mainline Protestants is B) Baptists. Mainline Protestant denominations, which are more progressive, include Episcopalians, Methodists, Lutherans, and Presbyterians, whereas Baptists tend to be Evangelical.
Step-by-step explanation:
Which of the following groups is NOT among those that is easily classified as Mainline Protestants? The group of denominations not typically classified as Mainline Protestants among the options provided is B) Baptists. This is because Baptists are generally associated with the Evangelical branch of Protestant Christianity. They tend to emphasize a personal relationship with Jesus Christ, are more likely to interpret the Bible literally, and are often very motivated to share their beliefs.
Mainline Protestants, such as Episcopalians, Methodists, Lutherans, and Presbyterians, are known to hold more progressive views, both theologically and socially. An example of Mainline Protestant denominations includes the United Church of Christ in New England. In contrast, Baptists, which include groups such as the National Baptist Convention, USA, Inc., are often found in the Deep South and Appalachia and are not categorized as Mainline.