Answer :
Final Answer:
Easel paintings are (b) self-contained, portable works of art.
Explanation:
Easel paintings are not necessarily created on easels (a) but are characterized by their self-contained, portable nature. They are typically created by artists working alone, but this is not an absolute requirement (c). The key feature of easel paintings is that they are intended to be viewed from a fixed perspective, primarily the front, and not necessarily from different angles (d). The term "easel painting" refers to works of art that are suitable for display on an easel and are usually small and easily transportable.
In summary, easel paintings are self-contained, portable works of art that can be displayed on an easel but are not exclusively created in this manner.
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