<prompt> Translate the following text to EnglishHasa sasa, wakati mwekezaji yeyote anaweza kupata karibu kamili diversification na fedha index na chaguzi index - na hivyo kupata kurudi sahihi ya soko kwa ujumla.  <response>: Especially now, when any investor can obtain almost perfect diversification with index funds and index options--and thus get the exact return of the market as a whole. 