Which of the following statement(s) is/are true?

A. The problem of increased pollution and depletion of natural resources is more obvious than a second problem, which is the diffusidon of individual moral responsibility

B. The idea of system started quite some time back in natural sciences when scientists started using this world to establish their view point

C. The emergence of trade unions in a political system affect the political parties, the electoral process, the legislature and judiciary

D. All of the above

Answer: Option D