The annual consumption of beef per person was about 64.5 lb in 2000 and about 60.3 lb in 2008. Assume B(t), the annual beef consumption t years after 2000, is decreasing according to the exponentia decay model. a) Find the value of k, and write the equation. b) Estimate the consumption of beef in 2010. c) In what year (theoretically) will the consumption of beef be 20 lb? a) Select the correct answer below and fill in the answer box to complete your choice. (Round to four decimal places as needed.) OA. B(t)= 60.3 D- 64.5 OC. B(t)= 60.3et OB. B(t) = 64.5et OD. B(t)=60.3e 0.3eDt