![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
When does the p artici p ants ’ and tem p erature chan g e ?
A.
When the y see the steam and ice in the tank.
B.
When the y see the actors fillin g the containers.
C.
When the y see the actors p uttin g hands into the iced water.
D.
When the y see the actor ’ s hands out of the water.