Answer:
Due to humanitarian impulses.
Explanation:
The main causes that led to the use of guillotine is the humanitarian impulses. The guillotine is known as a ruthlessly efficient killing machine to kill people for their punishment. The use of this guillotine was motivated by humanitarian impulses. The use of guillotine occur in order to adopt a more humanitarian and equitable system of capital punishment whereby all criminals, irrespective of their class, would be beheaded so we can say that