The sentence that contains an unnecessary shift in verb tense is the second one - Lee noticed a problem and alerts a teacher.
It should be <em>alerted, </em>which is the past tense as the first verb <em>noticed.</em>
The gerund phrase would be "is foolish" because it indicates what reckless driving is.
They will escape on a boat heading for Europe
B.) "<span>The thieves represent all those who try to take a short cut on their journey and who, in doing so, fail to realize their Personal Legend."
</span>C.) "The thieves harm the boy, but they are also an important part of his journey; Santiago would not have found his treasure without them."
I just took the quiz as well and can confirm that these are the correct answers. Thanks!