What’s the other part to this ?
Mrs.Jones is referring to the quality of the shoes. By stating that the shoes are "devilish" and "will burn your feet" means that the shoes are not in good quality and will make your feet ache. Hope this helped :)
Answer: They emphasize the statement and make the character seem childish
Exactly it is D. Limericks always have five lines. Also note that it has ryme scheme like A-A-B-B-A
