Fermium-253 Has a Half-Life Of $3.00$ Days If a Sample of Fermium Originally Has

Multiple Choice

Fermium-253 has a half-life of $3.00$ days. If a sample of fermium originally has $7.37 \times 10^7$ nuclei, how long will it take for there to be only $3.36 \times 10^6$ fermium-253 nuclei left in this sample?

A) $15.7$ days
B) $9.80$ days
C) $58.6$ days
D) $2.75$ days
E) $13.4$ days