Which audience and purpose would be most appropriate for the following sentence? with great sorrow and many fond memories, i must leave this important phase of my life and move on to more challenges and new faces. (4 points) select one:
a. to argue a point in front of a formal audience
b. to convince a group of strangers of a needed change
c. to entertain a group of friends with a life-changing story
d. to explain a difficult choice to an audience of friends