Write the Word or Phrase That Best Completes Each Statement $4.5 \%$

Multiple Choice

Write the word or phrase that best completes each statement or answers the question.
-Suppose the consumption of electricity grows at $4.5 \%$ per year, compounded continuously. Find the number of years before the use of electricity has tripled. Round the answer to the nearest hundredth.

A) $66.67 \mathrm { yr }$
B) $0.24 \mathrm { yr }$
C) $2.44 \mathrm { yr }$
D) $24.41 \mathrm { yr }$