In God of Highschool: Who was the one opponent that Taek Jegal didn't view as trash?

According to the naeyc, curriculum is defined as

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"

The invention of photography was initially important because