Read the following two sentences from the passage.
The thought of meeting with Mr. Garrett after school made Alita grin with much excitement, thinking of the inevitable praise coming her way.
“Stealing words, ideas, thoughts, and previously copyrighted work is a serious offense.”
Which best describes the shift in tone between the two sentences?
A.optimistic, then solemn
B.secretive, then excited
C.cautious, then overwhelmed
D.witty, then concerned