Rhythm can be described as the beat and pace of a poem. Rhythm is created by the pattern of stressed and unstressed syllables. in a line or verse. Rhythm can help to strengthen the meaning of words and ideas in a poem.
C is most likely the correct answer.
...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.