The last two answer options are two examples of explanatory thesis.
In the third answer option, the author presents a thesis that music streaming services are harmful. Then the author explains why he has this opinion.
Similarly, in the fourth answer option, the author defends music streams, explaining what makes them a beneficial system.
Therefore, we can say that these sentences are two examples of explanatory thesis.
Learn more about an explanatory text at the link:
https://brainly.com/question/13178079
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