In 1451 the king of Spain declared the blood purity statute that declared Jewish converts could not hold office in the Catholic Church.
What did this assert about Jews that would later become an accepted belief?

a. Jewish people are to be considered a race of people and not just a religious group.
b. Jewish people are not allowed to convert to other religions.
c. Judaism is first and foremost a religion and not a race of people.
d. Jewish people are a dominant race and are a threat to world dominance.

a. Jewish people are to be considered a race of people and not just a religious group.

Explanation:

The blood purity statute or law represents a forma division between two or more groups of people on the basis of race.

With the statute, the King of Spain effectively promoted the idea the Jewish people are not only a religion, or an ethnicity, but also a race, because he was discriminating Jewish people on a biological basis.

According to him, it did not matter if a Jewish person was a catholic, born in Spain, spoke spanish, and was competent and knowledgeable about church matters. The fact that said person had Jewish blood disqualified him from holding office in the Catholic Church.