Final answer:
A thesis statement is a declarative sentence that defines business issues or opportunities, found in the introduction of a report or proposal, and draws upon synthesis of various conclusions.
Step-by-step explanation:
A thesis statement is a specific declaration that defines business issues or opportunities, based on synthesis of intelligence conclusions. It is not only a claim or a position but also serves as the central idea that a writer conveys in a report or proposal. Typically, a thesis statement is found in the last sentence of the introduction and it previews the organization of the proposal and the recommended solutions.
The synthesis involves making connections between ideas and facts, combining them to draw an original conclusion. Hence, the thesis statement forms the core around which the rest of the proposal is structured and is crucial in arguing the writer's point of view.