F.3 Physics specific heat Problem Urgent!!!

Suppose the mass and temperature change of the aluminium block are m and T respectively, and the initial and final readings of the joulemeter are J1 and J2 respectively. Which of the following is true about the specific heat capacity of the aluminium block c? (Please give explanation either in Chinese or English)

A. c is greater than m x T x ( J2 - J1)

B. c is less than ( J2 - J1)/( m x T )

C. c is greater than ( J2 - J1 ) /( m x T)

D. c is greater than m x ( J2 - J1 ) / T