A $200 \mathrm{~mm}$ well fully penetrates a confined aquifer. After a long period of pumping at a rate of 1400 litres per minute, the drawdowns in the observation wells located at $25 \mathrm{~m}$ and $40 \mathrm{~m}$ from the pumping well are found to be $2.6 \mathrm{~m}$ and $1.9 \mathrm{~m}$, respectively. The transmissivity of the aquifer in $\mathrm{m}^{2} \operatorname{day}^{-1}$ is

(A) 190

(B) 198

(C) 206

(D) 215

A $200 \mathrm{~mm}$ well fully penetrates a confined aquifer. After a long period of pumping at a rate of 1400 litres per minute, the drawdowns in the observation wells located at $25 \mathrm{~m}$ and $40 \mathrm{~m}$ from the pumping well are found to be $2.6 \mathrm{~m}$ and $1.9 \mathrm{~m}$, respectively. The transmissivity of the aquifer in $\mathrm{m}^{2} \operatorname{day}^{-1}$ is

(A) 190

(B) 198

(C) 206

(D) 215

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