With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Queen Louise wanted her eldest son to marry as well as had her two daughters, Alexandra and Dagmar. Queen Victoria of the United Kingdom had two betrothed daughters, Princess Helena and Princess Louise, and two yet unmarried nieces; Louise planned to have Frederick marry one of them. However, Victoria did not want her close relatives to marry heirs to foreign thrones, as this would force them to live abroad, instead preferring German princes who could establish homes in England. In addition, Victoria had always been pro-German and another Danish alliance (Frederick's sister, Alexandra, had married Victoria's eldest son Edward, Prince of Wales), would not have been in line with her German interests.
text_B: Regardless of whether or not this might have impacted her decision, is there any chance that the young woman who was presumed to be eligible for marriage to Frederick had a different last name than Victoria herself?
YES.