Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-Assume the cost of a gallon of milk is $\$ 3.00$ . With continuous compounding, find the time it would take the cost to be 4 times as much (to the nearest tenth of a year) , at an annual inflation rate of $6 \%$ .

A) $23.1 \mathrm { yr }$
B) $0.1 \mathrm { yr }$
C) $0.0 \mathrm { yr }$
D) $8.5 \mathrm { yr }$