The C.O.P. of an absorption type refrigerator is given by (where T₁ = Temperature at which the working substance receives heat, T₂ = Temperature of cooling water, and T₃ = Evaporator temperature)

A. [T₁ (T₂ - T₃)] / [T₃ (T₁ - T₂)]

B. [T₃ (T₁ - T₂)]/ [T₁ (T₂ - T₃)]

C. [T₁ (T₁ - T₂)] / [T₃ (T₂ - T₃)]

D. [T₃ (T₂ - T₃)] / [T₁ (T₁ - T₂)]

Please do not use chat terms. Example: avoid using "grt" instead of "great".