I believe the answer is d
Writing a persuasive speech can be easier than you think as long as you have a solid knowledge of the subject about which you would like to speak. If you had an outline of steps for writing a persuasive speech then getting it out would be that much easier.First and foremost you need to get a hot topic that would normally spark controversy.
They made a huge profit by doing things the proper way.
The answer is C... It takes mental capacity to do the cleaning
That is the correct answer (a. it reveals the cultural context by discussing popular culture) because the others (b. c. d.) are irrelevant to the phrases.