The specific heat of a substance in the solid state is C₁; its specific beat in the liquid state is C₂ and its latent heat of fusion is L. If a mass M of the substance is changed from the solid state at temperature T, to the liquid state, also at temperature T, the amount of heat required will be ____________

A. M(C₁ ÷ C₂) x T
B. ML  
C. L
D. M(C₁ + C₂) × T ÷ ML
E. ML(C₁ + C₂ ÷ 2) × T

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Correct Answer: B