The details that best support the correct answer from Part A are:
1. "For once be careless, timid traveller, / and utterly lose your way" (Lines 1–2)
2. "Let it / be stripped, with nothing remaining but / the desolate triumph of losing all." (Lines 11–13)
These two details emphasize the theme of losing one's way and letting go of worldly possessions, which align with the correct answer from Part A.