Complete the summary by choosing one sentenc...

Câu hỏi: Complete the summary by choosing one sentence (A, B, C or D) that is among the most important information to fill in the blank. SUMMARY: This passage discusses the Battle of Gettysburg. The battle began when Confederate and Federal soldiers met by accident near Gettysburg. _______ . Failures by the Confederate forces in planning and intelligence allowed the Union army to win the battle

A. When Lee realized that Ewell had not attacked, the opportunity was gone

B. Confederate General Ewell hesitated to attack, which allowed the Union forces time to prepare

C. The Confederate soldiers regrouped south of Gettysburg on high ground

D. A total of 160,000 men were involved in the battle