In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
Reading habit is one of the best characteristics that a man can possess. Once the habit of reading books grows in one, it _______ dies out. It is said that a book is one's best friend in life. By reading a good book, one can not only earn knowledge but also _______ experience in life, and realize the eternal truth. A good book can guide one in the _______ direction in his life's journey. The taste of reading should be acquired early in life, because a good book refreshes one's mind and brings _______ pleasure. Just to read any book, whatever comes near at hand, is not called a good reading habit, because worthless books cannot provide knowledge. It is only a good book that can provide innocent joy and pure wisdom that one _______. So there must be a proper selection of books which are to be read.