user
It stares at you in the face all day without eyes.  It speaks without a mouth.  Its face always changes from one thing to the next. 
A: routine
B: cover
C: beaver
D: your television
E: spy
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>