Why do jobs- or careers- that require schooling and or specialized skills pay more than jobs that only require "on the job training? " a) there are more workers in various fields who are specialized than there are unskilled workers. b) there are fewer workers in various fields who are specialized than there are unskilled workers. c) companies are willing to compensate people for not going to school to ensure that they can train workers for the correct job. d) companies are willing to compensate people more for educations because it ensures that the candidate is always the best choice.