b. Find the vertical asymptote(s). Select the correct choice and, if necessary, fill in the answer boxes to complete your choice.
A. The function has one vertical asymptote, \( \square \) The limits at this vertical asymptote are \( \lim f(x)= \) \( \square \) and \( \lim f(x)= \) \( \square \) .
B. The function has two vertical asymptotes. The leftmost asymptote is \( \square \) and the rightmost asymptote is \( \square \) . The limits at the leftmost asymptote are \( \lim f(x)= \) \( \square \) an \( x \rightarrow a^{-} \)
\[
\lim f(x)=
\]
\( \square \) . The limits at the rightmost asymptote are \( \lim _{x \rightarrow a^{-}} f(x)= \) \( \square \) and \( \lim f(x)= \) \( \square \) .
C. The function has one vertical asymptote, \( \square \) The limits at this vertical asymptote are \( \lim f(x) \) does not exist and \( \lim _{x \rightarrow-a} f(x)= \) \( \square \) .
D. The function has two vertical asymptotes. The leftmost asymptote is \( \square \) and the rightmost asymptote is \( \square \) .The limits at the leftmost asymptote are \( \lim f(x) \) does nc exist and \( \lim f(x)= \) \( \square \) The limits at the rightmost asymptote are \( \lim f(x)= \) \( \square \) and \( \lim f(x) \) does not exist.
E. The function has no vertical asymptotes.
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