A 100 Gram Glass Container Contains 200 Grams of Water

A 100 gram glass container contains 200 grams of water at 10 °C. A 200 gram piece of lead at 150 °C is added to the water in the container. What is the final temperature of the system? (specific heat of water = 4,186 J/kg °C, specific heat of glass = 837.2 J/kg °C, specific heat of lead = 127.7 J/kg °C)

A) 12 °C
B) 14 °C
C) 23 °C
D) 31 °C
E) 37 °C