Final answer:
The two main qualifications for being a knight are Courage and adherence to the code of honor (D).
Step-by-step explanation:
Knighthood primarily required candidates to embody courage and uphold the code of honor. This code, known as chivalry, demanded virtues like loyalty, honesty, and fairness. Contrary to common belief, noble birth was not a strict requirement for becoming a knight. Instead, demonstrating valor in combat situations and displaying unwavering dedication to the principles of chivalry were essential. Knights were expected to protect the weak, defend the realm, and act with integrity in all endeavors.
While proficiency in combat skills was valued, it wasn't the sole criterion; the emphasis lay on the ethical conduct and bravery of an individual. These qualities were deemed crucial for a knight to maintain peace, justice, and order in society, making them respected figures in medieval Europe.
The correct answer is D) Courage and adherence to the code of honor.