During the

Question

the two families wrote hateful letters to
each other. Finally, the
family apologized.
A.
B.
D.
argument - peace
feud - quarrel
came to an end when one
dispute - friendship
war - teasing

Answer 1

Based on the context you provided, the most appropriate pairing would be:

feud - quarrel

This suggests a prolonged conflict (feud) between the two families which resulted in hateful letters (akin to a quarrel) until one family eventually apologized, leading to a resolution.