Final answer:
The ethical concept of fidelity is described as a duty to keep promises and tell the truth. Fidelity involves being honest and trustworthy, and fulfilling our commitments to others.
Step-by-step explanation:
The ethical concept of fidelity is described as a duty to keep promises and tell the truth. Fidelity involves being honest and trustworthy, and fulfilling our commitments to others. It is one of the prima facie duties identified by philosopher W.D. Ross, along with duties such as non-maleficence, the duty to do or promote good, and the duty of gratitude and reparation.