Not a proper exercise of Congress' enforcement power. and violated separation of powers intruded on states' rights.
Explanation:
Under the RFRA, the government is prohibited from burdening religion's free exercise. The Court held that while Congress may enact such legislation as the RFRA, in an attempt to prevent the abuse of religious freedoms, it may not determine the manner in which states enforce the substance of its legislative restrictions.
the RFRA overly restricts the states' freedom to enforce legislative restrictions.
In ancient times, Nubia was the principal corridor where "there were cultural influences transmitted" between Black Africa and the Mediterranean basin.
Option B is the the right tense of this sentence correction task "b. through which cultural influences were transmitted".