Final answer:
The correct answer is a, as it presents a clear and persuasive thesis on why Android phones may be preferred over Apple iOS phones, which can be effectively articulated in a speech.
Step-by-step explanation:
The correct answer is option a. To inform my audience on why an Android-based phone is preferable to an Apple iOS-based phone. A strong speech thesis should be clear, concise, and make a claim that can be supported by evidence. It often reflects an attempt to persuade the audience of a particular viewpoint. Option a meets these criteria, as it sets the stage for a speech that will inform the audience about the preferences of Android phones over Apple iOS phones, likely through comparisons of features, cost, and user experiences.
Option b, while informative, lacks specificity about the aspect of guns and violence being addressed. Option c is more of a claim or conclusion but doesn't provide the informative angle on how cyberbullying can be prevented and is therefore less effective as a thesis for an informative speech. Option d is too broad and lacks a definitive stance or angle, making it less effective for engaging an audience or outlining a specific topic within the broad subject of internet usage among millennials.