Answer:
D). Attempting to undermine a general principle by arguing that undesirable consequences would follow from it.
Step-by-step explanation:
The given argument employs the 'attempt to undercut a general principle by questioning the undesirable repercussions it would follow' as the argumentative strategy. The reflection upon consequences associated with the principle of 'rewarding people in proportion their effort' by stating that 'people having the least skill or natural aptitude for a particular job would be the ones given the most incentive to do it' helps in convincing the audience logically about another view of this principle and win the argument. Thus, option D is the correct answer.