The correct option is D This system allows a variety of interest and opinions to enjoy political representations.
A multiparty system in a democracy is a system where there are many political parties and they compete for power, take part in national election. In such system governments are often formed by coalition where many parties lead the government and they all work together to make laws. E.g., India, many political parties exist such as Indian National Congress, Bharatiya Janata Party, Samajwadi Party, Bahujan Samaj Party etc.