Original sentence: Edison then suggested electrocution with alternating current, which had been used for the execution of humans since 1890.She was dead in seconds.To augment the execution, Topsy was fed carrots laced with 460 grams of potassium cyanide before 6,600 volts of alternating current electricity were sent coursing through her body
Edited sentence: Edison then convinced the ASPCA that this would be more humane.Edison then suggested electrocution, in order to discredit the use of AC electricity that was cutting into the market for his DC electricity.She was dead in well under a minute.To augment the execution, Topsy was fed carrots laced with 460 grams of potassium cyanide before 6,600 volts of electricity were sent coursing through her body