Answer:
B. subtly showing humor in townspeople comparing the children to some kind of danger or threat, like a bomb
Step-by-step explanation:
The paragraph describes how a town reacted to the arrival of some unknown children. It shows us that although the inhabitants of the town were not evil or malicious, they were not very used to new things or people. They took their time to apprehend the new situation, in the way they always did, in a cautious way. It's funny because they have the same method for everything so if it had been a bomb they would have proceeded the same way as they did with the children. Once they were sure they were harmless they accepted them.