Which is one sided, opinion or argument?

A Opinion
B Argument

B. Argument.

i think that's the answer.

B.Argument

Explanation

That's the true answer i search it.

the anwser is went creeping down the river again, across the wide lonely marshes to the sea.

i longed to go with them out into the world to seek my fortune in foreign lands—africa, india, china and peru!

and, dreaming of the lands i had never seen, i'd sit on there, watching till they were out of sight.

what excerpt? i would generally think a.