Answer: If they are not complementary, then the light passes through the object or gets reflected.
Explanation:
I was actually hoping to get some options to answer this question. Since there are no options given, so i will have to answer this question from my knowledge and hope that it helps. A doctor whose father works as a janitor would be an example of inter generational mobility. It cannot be an example of vertical or horizontal mobility.
During the majority of WWI, the United States wanted to remain isolated in what many considered to be a European conflict. President Woodrow Wilson himself advocated isolationism until a series of conflicts drew the US into war against Germany.
