Final answer:
The yin and yang represents the balance between opposing forces, symbolizing the complementary nature of dual aspects in the universe.
Step-by-step explanation:
The sinusoidal interface line of yin and yang represents B) The balance between opposing forces. This concept originates from Taoism/Daoism, a Chinese religion and philosophy, and encompasses the dual nature of existence. The yin, which is the dark swirl, symbolizes aspects such as shadows, femininity, and receptivity, while the yang, the light swirl, signifies brightness, passion, and activity. The symbol illustrates how opposite elements complement and balance each other, with each aspect containing the seed of its counterpart, indicating that everything in the universe consists of two forces that are interconnected and interdependent.