Read the following passage and answer the questions that following:

 Alfred Bernhard Nobel, A Swedish inventor and philanthropist, bequeathed he; most of his vast fortune to a trust that he designated as a fund from which annual prizes could be awarded to the individuals and organizations that had achieved through invention or discovery that which would have the greatest benefit to humanity in a particular year. According to the legend, Nobel's death had been erroneously reported in a news paper, and that the focus of the obituary. Was the fact that Nobel had invented dynamite? When he read this objective summary of his life, the great chemist, it is Said, decided that he wanted his name to be remembered for something more positive and humanitarian than inventing an explosive that was a potential weapon. He rewrote his will in 1895; thereby establishing, with the original amount of nine million dollars, the Nobel foundations the legal owner and administrating agent of the funds and instituting the prizes were written, along with guidelines for operating procedures. Five years after Nobel's death, the first five prizes, worth about forty thousand dollars each, were to be awarded.

(a)who is Alfred Bernhardt Nobel?

(b)why did he rewrite his will in 1895?

(c)How is the fund of the Nobel Prizes operated?

(d)what are the conditions that must be fulfilled to win the Nobel Prize .