Considering the situation described above, the strategy that uses a keyword to trigger confidence is PowerPoint.
This is because by using Microsoft PowerPoint, Elijah can undoubtedly draw out some keywords, which he will then display by reading them out and explaining to the audience.
PowerPoint allows speakers to embed keywords in the slide they can then use to explain it deliver their speech or presentations effortlessly.
Hence, in this case, it is concluded that the correct answer is "PowerPoint.
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