Which is NOT a major obstacle in evaluating ethical leadership for individual leaders?

A) lack of interest in ethical leadership among scholars
B) difficulty in determining if the ends justifies the means
C) cultural differences in standards of ethical behavior
D) the subjectivity inherent in the selection of criteria

The lack of interest in ethical leadership among scholars is not a major obstacle in evaluating ethical leadership for individual leaders. In fact, there is significant scholarly interest in this area, with extensive research and literature available on the topic. The other options (B, C, D) represent real challenges in assessing ethical leadership, such as the complexity of ethical dilemmas, cultural variability in ethics, and the subjective nature of evaluation criteria.