To take an Oath or promise
I think the answer may be Spain but I am not sure.
Answer:
The answer is d. covert rules.
Explanation:
Covert rules are inflexible and, for this reason, they cannot be discussed. Because each family has different covert rules, it might be difficult for a non-member to adapt to them.
Cover rules are discovered through experience. For example, always saying "thank you" after meal might be a custom for some families.
Galileo used his telescope to prove that Copernicus's theory was right, that indeed the sun was in the center of the solar system rather than the earth from Ptolemy's geocentric theory.
Galileo found Jupiter's moons and Saturn's rings and supported the argument that the earth, therefore, was not at the center or else everything would be center on earth.
