Question

at \show\ trials during the great purge, suspects often
confessed to crimes they could not have possibly committed.
admitted to crimes the secret police saw them commit.
received no punishment because the trials were not real.
faced torture if they lied while a judge questioned them.

Explanation:

The show trials of the Great Purge (Soviet Union, 1930s) were staged events. Suspects were coerced (often through torture, threats to family, or psychological pressure) into confessing to fabricated, often impossible, crimes to legitimize Stalin's political repression. The other options are incorrect: the secret police did not witness the "crimes," suspects faced severe punishment including execution, and torture typically occurred before the trial, not during judge questioning.

Answer:

confessed to crimes they could not have possibly committed.