Which of the Following Is an Example of a Purpose/thesis

Which of the following is an example of a purpose/thesis for an inspirational/motivational speech?

A) This afternoon I will show you how you can mix three common household products to create your own antiseptic.
B) Today I will ask you to remember three steps you can take to avoid identity theft.
C) After hearing this information, you should be eager to help take steps to change the grading system on our campus.
D) Our goal tonight is to honor the sacrifice made by students serving in the armed forces.