Read the following excerpt from a 1775 speech by patrick henry in which he presents his ideas concerning the american colonists' relationship with great britain: "shall we try argument? sir, we have been trying that for the last ten years. have we anything new to offer upon the subject? nothing. we have held the subject up in every light of which it is capable; but it has all been in vain. shall we resort to entreaty and humble supplication? what terms shall we find which have not already been exhausted? " which best explains the purpose of the rhetorical device used in this excerpt? a. the metaphor of a storm to represent the monarchy implies that it is powerful and unpredictable. b. the strong appeal to ethos leads the audience to trust and agree with the speaker. c. the repetition of the words "sir" and "throne" emphasize the point that the colonists are subordinate to great britain. d. the use of parallelism draws attention to the many peaceful steps the colonists have taken.