The function NOH$=\frac{0\mathrm{.}5t2500}{7t4}$ 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 $103\mathrm{.}1$ kg

Choose the correct answer below

A$.$ The cenceisibilion changes more from $30$ hr to $31$ kr

B$.$ The concertration charges more from $1\mathrm{.}1$ hr to $1\mathrm{.}2$ hr