<u>to</u><u> </u><u>r</u><u>e</u><u>l</u><u>y</u><u> </u><u>o</u><u>n</u><u> </u><u>s</u><u>o</u><u>m</u><u>e</u><u>o</u><u>n</u><u>e</u><u> </u><u>o</u><u>r</u><u> </u><u>s</u><u>o</u><u>m</u><u>e</u><u>t</u><u>h</u><u>i</u><u>n</u><u>g</u>
The correct answer is D. Cannot stand as a sentence.
Subordinate clauses convey no meaning when left alone and must always be used in combination with independent clauses so as to create a complex sentence that conveys meaning.
I'm sorry, I don't have enough info to answer the question :) Can you explain?