This sentence has unequal ideas joined by a subordination conjunction.
Since the ideas in the sentence imply causation (the broken pulleys caused the inability to raise the flag) it means that the ideas are unequal. It is also necessary to join them with a subordinating conjunction, which show the causality within the sentence. In this case that subordination conjunction is "because".
I think that in this passage the phrase "pack through" means carrying one's belongings on saddle packs on the horses and leaving the wagons (covered wagons?) behind to travel faster to get to the California gold fields sooner. Mr Johnson decided not to travel this way and instead harnessed his horse to the Frink's wagon and they continued as before. The following excerpt intimates what "pack through" means without actually saying it in those many words. "<span>Mr. Wand and his company have left their wagons here and made pack-saddles, intending to pack their clothing, blankets, provisions, and cooking utensils on their animals, in order to travel faster".</span>
Answer:
It is neither obvious nor unclear.
Explanation:
Self-evident and obvious, requiring no demonstration or explanation,
Antonym for Self-evident opposites of self-evident-It is neither obvious nor unclear.
I'd say the answer is A) like rivers, people keep moving and finding new paths.
He wants to say that even black people will manage to find a good future, following a new path, the same way any other human being will.
The other examples do not seem correct to me.
