I think your essay is wonderful! You said your opinion in your first paragraph, then stated why in the next ones. Also the big if is pretty cool. Keep on writing essays and lapses will be corrected. Try to proofread and check the spelling so that it will be better.
B. Because you don't want to have a sentence that isn't complete in an essay
Answer:
My plans for starting a new restaurant fell <em><u>through</u></em> for lack of capital.
Explanation:
If something such as a deal, plan, or arrangement falls through, it fails to happen.