The table below shows the functions to represent the sale f(t), in thousands, of four companies in t years: company a b c d sale f(t) = 0.87t f(t) = 0.756t f(t) = 1.26t f(t) = 1.09t which of the following companies showed an exponential growth in sale? a. company a and company b b. company b and company c c. company a and company d d. company c and company d