The answer is B - their. Both the knight and his squire are people, and if they ever have differences in gender, to make the sentence structure easy, 'their' is the appropriate word that will complete the sentence structure. They forgot to pack 'their' food.
In the 1920s, a few acts were passed by the government to limit immigrant activity to the United States. These acts, in the long term, harmed America because it put a great limit on the ethnic diversity because it blocked out so many ethnic groups.
Teachers are able to help children with school subjects such as science, math, biology, etc.They also teach children, teens, and even adults.