What cause and effect relationship is described in this article?

A. Families often celebrate the Chinese New Year by cleaning their homes to sweep away bad luck.
B. Kids often celebrate the Chinese New Year by getting fresh haircuts to symbolize a new beginning.
C. Families often celebrate the Chinese New Year by eating long noodles to honor China's long history.
D. Kids often celebrate the Chinese New Year by displaying the color red to scare away evil spirits.