Acording to the events that were taken as a basis for the setting of the story, If you wanted to support the idea that Beowulf is an epic hero, you might best note that he embodies the ideal of Anglo-Saxon society. This option seems to be the only relevant. Hope you still need the answer, because this one us really helpful.
The answer I think is true from common sense
The Tet offensive proved that not only did the Viet Cong have the desire to fight back, but also the ability. It killed many US soldiers and set the war strategies back a bit. This added deeper conflict and dread to American fighters as well as American civilians.
I think the best answer is to ignore them all. You will find alot of people with those characteristics but you can't just go around proving them wrong or right. Every successful person has atleast a hater. You will need those people to be successful but if you think about them alot they might cause you problems mentally. It's easy to say as given in the pic but hard to do. Ignore them but if you can everytime they say "You can't do it" prove them wrong :)