jwt:

json:

Why is the following function discontinuous at $x=1$?

(a) $f(1)$ does not exist.
(b) $\displaystyle \lim_{x \to 1} f(x)$ does not exist (or is infinite).
(c) Both (a) and (b).
(d) $f(1)$ and $\displaystyle \lim_{x \to 1} f(x)$ exist, but they are not equal.

Your overall score for this problem is