Correct Answer: B
Explanation:
The missing word has been used to describe the approach to problems in life. Each of the given words can be used to impart a logical meaning to the sentence by placing them in the blank. We need to choose two words that are similar in meaning so that placing either of them in the sentence would make the sentence convey the same meaning. This implies that B and E are the correct answers as they are the only words in the given list that carry the same meaning.