Fill in the blank (i).

Directions: In the following passage, some of the words have been left out. Read the passage carefully and choose the correct answer to the question out of the four alternatives and fill in the blank. 

Some people are of the opinion that marriages are made in heaven, one cannot say _____(i)_____ this is true or not. However, in America now many       _____(ii)_____ who get married seek to evolve a foolproof _____(iii)_____ to ensure that the marriage survives.  However, the idea of married persons      _____(iv)_____ the burden of domestic chores, instead of all the dirty work being dumped on the woman has been _____(v)_____ by the feminist lobby and it has gradually, if grudgingly, been accepted.