MC~~heat一題

which of the following statements concerning temperature is/are correct?
(1)Temperature is a scalar quantity
(2)Temperature is a measure of the total kinetic energy of the molecules making up the body.
(3)Temperature is the property of a body that controls the direction of heat flow when it is put into contact with another body.
A(1)only
B(2)only
C(1),(2)only
D(1),(2),(3)
The ans is D
是否本書出錯題? 我覺得答案只是1和3
因為temperature is a measure of average ke, not total ke