Pompous, aloof, and domineering are all accurate ways to describe someone who is

The answer is B: arrogant.

Someone who is arrogant will show a tendency to exaggerate one´s own worth or importance in a way that is unwelcoming, invasive, or frankly exasperating. The three ways that the question addresses someone who is arrogant clearly describe this kind of character. First, a pompous person would be one that grants him or herself more importance than perhaps befits that person. Second, an aloof character would be one that is distanced; in this case it would be one that is distanced from reality, in the sense that that person is too distanced of him or herself to be a good judge of his or her own character´s worth. Finally, domineering would be a kind of character that exercises arbitrary control over others; in this case, it would be the kind of control that an arrogant person would arbitrarily exercise over others based on his or her own self-worth, which is, as it can be seen above, not justified.

Work function of metal = hc/e h=planck's constant c=speed of light in vacuum = threshold wavelength = 285nm e=1.6 x 10^-19 So = (6.63x10^-34)x (3 x 10^8)/(285x10^-9 x 1.6 x 10^-19) =4.36 eV Maximum energy of emitted electrons = Energy incident - work function = hc/e (where =140nm) =(6.63x10^-34)x (3 x 10^8)/(140x10^-9 x 1.6 x 10^-19) - 4.36 =8.88 - 4.36 = 4.52 eV