If you are planning to apply for employment with a particular company it is indeed important to research the company's background. The reason why you should be aware of a company's background before you apply is because it's going to effect you and you're professional techniques as you might have the expertise the company would need. If you research the background of a company and it matches you're ability of skills you will be more likely to apply to that company as it will be more beneficial to you and what you have to offer. That is why it is important to be aware of what you are applying for and be further more prepared.
You seem to have every kind of verb form present in this selection. I'm going to list them all and what they do.
being blind: It is a participle and it is a participle phrase. But is it an adjective?
was is a linking verb for the main clause. It is not a candidate at all.
set is the predicate of the subordinate clause beginning with except not a candidate.
stood second main clause predicate verb.
gazed a verb form for the main clause.
had died. Main clause verb. Not the answer.
having been long enclosed is close. Unfortunately it is a gerund phrase which is an object of a preposition (from). It likely is the second best answer.
hung main clause verb.
found main clause verb
The rest don't matter they are linking verbs or main clause verbs or subordinate clause verbs.
The only one you really could choose is being blind. It describes street.
Answer: The answer is learning, learning is the process of acquiring knowledge or skills through study, experience and teaching.
Explanation: This is because through learning a person will be able to acquire new skills and learn new things. Learning can be done through studying books, what others has experienced or by paying attention to the teacher while delivering lecture.