Need help with criminal law questions!!!!!!!!!!?

[patwin87]

Insanity is a ________ defense.

a. scienter
b. mens rea
c. inference
d. actus rea

Three witnesses testify at Bob's trial that they saw him take a handgun, hold it to Ray's head and pull the trigger. Ray dies. Based on this much evidence the jury:
a. can determine Bob's motive.
b. can infer that Bob intended to harm Ray.
c. cannot conclude that Bob intended to harm Ray.
d. None of the above.

[doran]

b
b