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.
Sentence outlines tend to help with grammar. They help you organize clauses to figure out internal punctuation such as commas or semicolons. They also help you make sure you have a completed thought.
It wold be D, like Nochillalisa said. There's more than 1 man. If it was man, then there would be no answer. But it's men, so it D.
I’m gonna take a guess learning disability