Which of the following was evidence to support vanzetti's innocence during the braintree robbery and double murder trial?

no witness claimed to see vanzetti during the shooting.

witnesses placed vanzetti elsewhere during the crime.

vanzetti feared for his safety and that of his friends.

vanzetti's gun had not been used in the shooting.

I believe the answer is: No witness claimed to see Vanzetti during the shooting.

The defense lawyers hired by Vanzetti managed to obtain 16 witnesses who testify that they never see Vanzettin during the shooting. But the defense fail to convince the jury regarding his innocence, and Vanzetti eventually executed along with his partner for the robbery.

the qing dynasty placed strict limits on foreign merchants' ability to trade in china.

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns