A Clear Colorless Liquid in an Open Beaker Was Heated

Multiple Choice

A clear colorless liquid in an open beaker was heated to boiling.The liquid began to boil at 110°C,and as vapors escaped,the temperature of boiling gradually increased to 115°C,at which point the heating was stopped.On the basis of this information,we can say that the material in the beaker was a

A) pure compound.
B) homogeneous solution.
C) pure substance.
D) pure element.
E) heterogeneous solution.