His first failure did not ___ him from making another attempt.

Correct Answer: D. None of these 

The question presents a scenario where someone experiences failure but remains undeterred and decides to make another attempt. The task is to choose the word that correctly fills in the blank to convey this meaning. The options are “Interfere,” “Frighten,” “Bold,” and “None of these.” The correct answer is “None of these” because the appropriate word to use in this context is “deter,” meaning to discourage or prevent someone from doing something.