<span>e. b and c only
As long as a speaker lets the audience know who the author of a study is, and gives a brief overview of their credentials or qualifications, the audience should be able to trust the information that the speaker is presenting, based on their credible research.</span>
Alright, you should need an introduction.
First of all, the introduction needs to have a grabbing sentence that will interest the reader, and make them want to know MORE. Secondly, you must include a thesis statement in order to inform the readers on what your topic is, and what you will be talking about.
Second of all, the body paragraphs need to include facts and evidence. you must site everything in order to not plagiarize.
Third of all, the conclusion needs to be at the end, and it needs to restate the thesis.
In this text, you are informed on what the term "Sandwich generation" means. You are then provided an example (2nd sentence). The example can be found when the transition word <em>for instance</em> is used. From this information, you should be able to conclude that the correct answer is a. definition and example.