Personal anecdotes in a valedictory speech can serve to
a. trigger people���s memory
c. let people get to know the speaker
b. show off the speaker���s accomplishments
d. all of the above

the answer is:

apprehensive.

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.