The answer to the given question above is BUILD IN REDUNDANCY. From the term itself "redundancy", notice that Sheena is repeating the same information about Marie Curie in all parts of her speech. From the introduction, to the internal summary and transition, up to the conclusion. In this way, audience would easily recall or remember the highlighted information about the topic.
1. China
2. Japan
3. and is Russia an option?
Sorry bro, this is the<em> English</em> subject
