The main idea of this paragraph is that they spent weeks trying to determine where the smell was coming from.
Answer: IT IS B
Explanation: The central idea of this excerpt is developed through: cautious excitement.
a. Cheers and laughter greeted Millicent as she finished her speech.
b.Hugs comforted Millicent following her blushing but sincere speech.
c.There was a stunned moment of silence following Millicent’s proclamation.
d.There was an enthusiastic round of applause after Millicent finished talking.
A. "...'Take one psychology class and you know everything. You need to go on back to college...'"
