Determine if the given function can be extended to a continuous function at x=0. If so, approximate the extended function's value at x=0 (rounded to four decimal places if necessary). If not, determine whether the function can be continuously extended from the left or from the right and provide the values of the extended functions at x=0. Otherwise write "no continuous extension."

f(x) =tanx/x

a) f(0) = 1 only from the left

b) f(0) = 1

c) f(0) = 1 only from the right

d) No continuous extension