Some people think that criminals should be imprisoned for a long time, while others feel that we can create other type of punishment to them , what is your opinion ?

the word that best matches the meaning of the expression "went to the big ocean" is died.

the goldfish died, which is why the father looks at the children mournfully. the "big ocean" is the father's way of saying fish heaven. he could have just said that the goldfish died, but this way, the children imagine the fish in a bigger, better place instead of just picturing a dead fish.

explanation:

i would pick a. i think this is more of a personal question though.