Final answer:
The purpose of the names of the girls in this poem is open to interpretation, but option C, which suggests that the names imply that the girls are sisters, is the most plausible.
Step-by-step explanation:
The purpose of the names of the girls in this poem is not explicitly stated in the given information, so we can analyze it based on the options provided. Out of the given options, the most plausible answer is option C, which suggests that the names imply that the girls are sisters. The use of similar names can indicate a familial relationship between the girls, emphasizing their bond. However, since this information is not explicitly mentioned in the poem, it is also important to consider other possibilities.