Please help will give brainliest.
50 pointssssssss!!!!!!!!!!!

1. What is cultural diffusion? How did it happen in the past, and how does it happen today? To get started, think of ideas, beliefs, or practices you are familiar with and follow their spread from one part of the world to others. Here are some examples:
(a) Religions
(b) Scientific advancements
(c) Styles of art, architecture, or music
(d) Political systems