What is the quality, which the author subtly points out, that made Unferth challenge Beowulf’s credibility?

Question 19 of 202 pointsread this passage: a longer school day might prove troublesome for the manystudents who need more time to complete all theirhomework and also participate in extracurricular activities. which word could best replace the word troublesome without changing theoverall meaning of the passage? o a. easyo b. challengingo c. hedeld. impossible