Which Was NOT Inculpatory Evidence Which Led to Amy Van

Which was NOT inculpatory evidence which led to Amy Van Wagner as the killer of her husband?

A) She withdrew money from her husband's bank account between the day of the murder and the day the body was found.
B) She possessed a gun with the same caliber as the murder weapon.
C) Amy searched rental carpet cleaner with the in-private browser function.
D) She went to work and acted very normal the day Stanley was killed.