I'm so glad it was immigration (I said it would be)! I thought the prove wrong question was strange since the woman was mostly saying things like "I am unhappy about..." which you can't really say is wrong. But the prove wrong questions are always silly because there is never an occasion where one source would prove another wrong, prove is too strong a word.
It was also weird that every source except the cartoon was about the 1950s! A very strange paper if you ask me, especially that 12-marker, very specific, the statement is usually very vague.