The correct answer is C. He ran out of money.
Justinian I failed to regain all of the former provinces of old Roman Empire because he ran out of money. His once powerful army was weakened by the plague and the finances were down. He ran out of options.
Justinian I or Justinian the Great was the Eastern Roman Emperor from 527 to 565.
<span>Facts could be items like "The Civil War began in 1861" or "Fort Sumter was in South Carolina" or "Jefferson Davis was the President of the Confederate States." The opinions could be items like "The South was fighting for an ideal it believed in" or "Slavery was a moral good for the South" or "The North was usurping on the sovereignty of the several states."</span>
One of the major causes of the stock market crash of 1929 was "<span>(1) excessive buying of stocks on margin" although it should be noted that there were several major factors.</span>