Somebody has to come test the water before you can use it , " she said . I stood in the middle of my brick walkway , staring down at a long list of names and numbers , remembering the cartoon Dad used to quote whenever someone questioned his love of sailing . " A boat is just a hole in the water you pour money into . "

Question with options to choose from: Why does the water need to be tested ?
pick from the following. (i) It 's the law in their city .. (ii) They have gotten sick before .. (iii) For the city to make more money .. (iv) To ensure it is safe ..
(iv)