Answer:
D. The systems draw on both the arts and natural science.
Explanation:
According to the passage, systems of philosophy retain a certain relative validity because they draw on both the arts and natural science as they are not solely dependent on either the facts and theories of natural science or the classical approach to art but use both aspects well.
<h2>Thanks for points Friend</h2>
Contract in colours: black and white = lack of movement, frozen. Coloured = free flowing movement in the blend of colours.