I believe that making online purchases through smart speakers isn't a good idea. It would become very easy to steal credit card information if you are just yelling it into your devices. You also have the scenario were a kid or friend could jokingly order something.
The answer is D because an eye rhyme refers to words that look like they should rhyme but sound different. "Thrush" and "Bush" both end with "-ush" but the "u" is pronounced differently.
The answer is D, mood refers to how the audience feels.
