Which piece of dialogue from "The Catnapper" best reveals the author's message that problems are more easily solved when people work together?

Early Wednesday morning, Cara called Wesley in a panic about her own beloved kitten. "Simon didn't come home last night!"
"Oh, they're nothing to worry about," Mrs. Pebble said, waving her hand. "Both of their barks are far worse than their bites, I'm sure."
"That way everyone could pitch in and help rather than spend the whole summer looking for lost cats," Wesley stated, crossing his arms.
"There doesn't seem to be a location pattern, Wesley," Cara said as she pointed out the locations of the cats' homes on the map.