These are all the prepositions
aboard
upon
of
to
It means life has its ups and downs. Everything is not always great or not always bad. Somehow it all kind of balances out
<span>He it was who fought his way through the white water</span>
<span>The beginning of an MLA citation is "lastname, firstname". B and C don't follow this, so you can eliminate them. Then you notice at the end of the citation, the pages cited has to be preceded by a "pp". Choice A doesn't follow that, so we can also eliminate that choice. The remaining choice "D" is a correct citation.
:)</span>
