Answer: The correct answer is "that they stay busy with chores and work"
Explanation: I got it correct on Odyssey ware :))
Quote directly from the book:
"Don't grieve and fret when I am gone, or think that you can be idle and comfort yourselves by being idle and trying to forget. GO ON WITH YOUR WORK AS USUAL, FOR WORK IS A BLESSED SOLACE. HOPE AND KEEP BUSY, and whatever happens, remember that you never can be fatherless."