The Half-Life Of $30 \mathrm{P}$ Is 250 Minutes $30 \mathrm{P}$ Has $1.60 \times 10^{10}$

The half-life of $30 \mathrm{P}$ is 2.50 minutes. If a sample of $30 \mathrm{P}$ has $1.60 \times 10^{10}$ nuclei present, what is its activity?

A) $1.6 \times 10^{9} \mathrm{~Bq}$
B) $6.4 \times 10^{9} \mathrm{~Bq}$
C) $1.6 \times 10^{10} \mathrm{~Bq}$
D) $7.4 \times 10^{7} \mathrm{~Bq}$
E) $4.6 \times 10^{7} \mathrm{~Bq}$