— How do you deal with the disagreement between the company and the customers? — The key _____ the problem is to meet the demand _____ by the customers.
The air crash occurred, __________.
A. killing 50 people and injurying 100 people
B. leaving 50 dead and 100 injures.
C leading to 50 dead and 100 injuries
D. causing 50 deaths and 100 injuries