...a type of commitment in which the parents of a boy and agirl agreeon having them marry.
According to the information available on this excerpt, a betrothal is a promise which can be later modified, in which the parents of a boy and a girl promise to marry them. This could also be a definition of arranged marriage.
Answer:
Hey there!
A relic can be described as a holy object associated with a saint.
Let me know if this helps :)
It could be the first or the third answer but i am not sure you probably have to look up the words to find what it could be