Which of the following is the best example of engaging with an external business communication?

External business communication involves interactions or information exchange with entities outside the organization. Reading a Material Safety Data Sheet (MSDS) for a purchased chemical product involves engaging with information provided by an external supplier or regulatory body, making it the best example. Option A (Six Sigma meeting) is internal, as quality control is within the organization. Option B (stock report) and Option C (personality test scores) are also internal, generated by the CFO and HR, respectively. This question aligns with the Communication and Career Development category, emphasizing external communication.