A cultivator with a working width of $1.2 \mathrm{~m}$ utilizes $95 \%$ of its width due to overlapping while operating at a forward speed of $2 \mathrm{~km} \mathrm{~h}^{-1} .$ If the time lost in turning and other interruptions is 50 minutes per hectare, the field efficiency of the cultivator in percent is

(A) 79.84

(B) 83.34

(C) 86.97

(D) 90.20

A cultivator with a working width of $1.2 \mathrm{~m}$ utilizes $95 \%$ of its width due to overlapping while operating at a forward speed of $2 \mathrm{~km} \mathrm{~h}^{-1} .$ If the time lost in turning and other interruptions is 50 minutes per hectare, the field efficiency of the cultivator in percent is

(A) 79.84

(B) 83.34

(C) 86.97

(D) 90.20

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