The scientist that Frankenstein admired when he was a teenager was Cornelius Agrippa.
He was a German scientist, but also an occult writer. His works resonated with young Frankenstein's gullible and voracious mind, so he had a huge influence on his later endeavors.
Few events have a worst impact than the ww1.
#3. A and C
#4. A.
I'm not too sure if this is correct but I hope this helps.
