In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives.
Teachers ____________ the country require proper training at the appropriate time in their careers. On account of the unique occupational dynamic, together _________the constant pressure to address the growing expectations of society and the ______________ of teaching pedagogy, teachers need to be engaged in continual re-examination of their role. This cannot be achieved unless they incorporate the subjects as varied ________ applied ethics, human psychology, spirituality, ____________values, peace studies, and organisational behaviour.