Answer:
The type of literature review that is most likely to be smaller in scope and length is:
a. stand-alone literature review.
Explanation:
The aims of a stand-alone literature review and a literature review of chapters in a dissertation are different. Whereas a stand-alone literature review summarizes and evaluates the current knowledge of a specific topic, a literature review of chapters in a dissertation aims to describe and address the gaps in the current knowledge of the specific topic. This is because it forms part of the research proposal or project. It is a way of addressing the gap instead of just summarizing or evaluating the available knowledge as a stand-alone literature review does.