Answer:
A. Technological Advancement
Step-by-step explanation:
Theodore Kaczynski was an American domestic terrorist who was involved in series of bombing incidents in US to revolt against the Technological Advancement.
Before he was a terrorist, he was "mathematics professor" and "anarchist author". He started nationwide bombing campaign and killed 3 people and 23 between the year of 1978 and 1995. He was unsatisfied with the cultural behavior of people affected by the technological advancement.
He didn't like the way people were exploiting nature and began a revolution.