B. Roots
Roots are the smallest meaningful parts of words. For example the root word of aquamarine would be Aqua, which means water. So the root word can also give you a hint on the meaning of the word.
Hope this helps :)
Emphasizing how happy the family is, i believe.
The answer is B. People of that time, Jews, thought of the Samaritans as 'dirt people'...they had a word for it but I cannot think of it at the moment.