Final answer:
Respecting elders and giving thanks are respectful, while complying with school rules and being respectful to people of authority can violate the principle of respect.
Step-by-step explanation:
The principle of respect is violated by option c) Complying with school rules and option d) Being respectful to people of authority.
Respecting elders, option a), and giving thanks when receiving a favor, option b), demonstrate respect and are in line with the principle of respect.
Option c) violates the principle of respect because it implies blind obedience to rules without questioning or considering the well-being and values of others. Option d) violates the principle of respect when the respect for authority becomes oppressive or is used to manipulate and control others.