Which of These Findings Does NOT Counter Zimbardo's Theory That

Which of these findings does NOT counter Zimbardo's theory that crowding leads to anti-social behaviour?

A) Crowds have shown solidarity in response to an emergency.
B) Crowds have shown mutual helping behaviour in response to an emergency.
C) Those who identify strongly with other crowd member are more likely to help fellow crowd members
D) Crowds have been found to bait or encourage those attempting suicide to jump.
E) Crowds have shown calmness in response to an emergency.