[单选题]
If heat is added to a pure sub6cma igtq9zg2z-55 vostance at a st5hzlx9i3w7 s beady rate,
A. its temperature will begin to rise.
B. it will eventually melt.
C. it will eventually boil.
D. More than one of the above is true.
E. None of the above is true.
