In an Experiment, 25 $\degree$ C and Then Quickly Transferred to 100

In an experiment, 25.00 g of iron is heated to 228.00 $\degree$ C and then quickly transferred to 100.0 g of water in a calorimeter at 18.00 $\degree$ C.The final temperature comes to 20.50 $\degree$ C.What is the approximate heat capacity of the calorimeter? [c_p(iron) = 0.450 J/(g . $\degree$ C) ; c_p(water) = 4.184 J/(g . $\degree$ C) ]

A) 6.21 J/ $\degree$ C
B) 16.3 J/ $\degree$ C
C) 515 J/ $\degree$ C
D) 934 J/ $\degree$ C
E) 1350 J/ $\degree$ C