What paragraph? Well immune means protected from something or like you can’t be effected by something
Perhaps all the above - there will be people who don't necessarily have great morals and temperament, but they will attempt to portray themselves in a brighter light, accomplish their purpose whilst capturing the reader's attention all at the same time. B, however, I'm not too sure with that, so it's your choice if you choose to circle A, B, C and D rather than A, C and D.