In 2009 accounted for 1772 fatalities ?

My science teacher explained how the weather cycle works using an illustration. which is the best revision of this sentence?

After the fall of saigon, americans a) were eager to explore the lessons of vietnam b) just wanted to forget about the war c)bought airline tickets to hanoi d)demanded that the u. s. get involved in "another vietnam"

What is the direct object in the sentence yes, they will enjoy it very much