Which is an asymptote of the graph of the function y = cot ( x - 2pi / 3 )

a) x = - 2 pi / 3

b) x = - pi / 3

c) x = - 4 pi / 3

c) x = 7 pi / 3

now, if the denominator turns to 0, the fraction becomes undefined, and you get a "vertical asymptote" when that happens, so let's check when is that



now, at those angles, the function is asymptotic, check the picture below

Im sorry but what on