15 POINTSWhich lines from Robert Frost’s "The Road Not Taken” most convey a tone of regret? And looked down one as far as I could To where it bent in the undergrowth; Though as for that the passing there Had worn them really about the same, Yet knowing how way leads on to way, I doubted if I should ever come back. I took the one less traveled by, And that has made all the difference.

Yet knowing how way leads on to way, I doubted if I should ever come back.

Explanation:

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: