6849. Pick out the wrong unit conversion of thermal conductivity.

by
1 BTU/ft².hr.°F/ft = 1.488 kcal/m². hr.°C/m
1 BTU/ft².hr.°F/inch = 1.488 kcal/m². hr.°C/m
1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m. °K
1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F
✅ The correct answer is option B.

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