The function $N(k)=\frac{0\mathrm{.}5t2000}{7t4}$ gives the bodily concentration Num, in parts per million, of a dosage of medication after time t$,$ in hours. Use differentials to determine whether the concentration changes more from $1\mathrm{.}1$ hr to $1\mathrm{.}2$ hr or from $3\mathrm{.}0$ hr to $3\mathrm{.}1$ he

Choose the correct answer below

A$.$ The concentration changes more from $3,0hr$ to $31$ hr

B$.$ The concentation changes more from $1\mathrm{.}1$ hr to $1\mathrm{.}2$ kg