Answer:
B is correct answer.
Step-by-step explanation:
Insignificant means something that is extremely unimportant. Relative insignificance means that something is unimportant relative to things that it is comparable against.
Now in the situation that is provided by the writer where Joseph forgot to bring his homework to class. He is being judged relative to his class fellows who have brought their homeworks along, this is a grave mistake and will forever remain with him and lower his ranks in terms of personal and academic achievements.