The correct answer is option 'D' - None of the above.

Explanation:
MNCs, or Multinational Corporations, are large companies that operate in multiple countries and have a significant impact on the global economy. While MNCs can have various effects on the market, they do not directly increase competition, price wars, or quality in the same way that domestic companies might.

1. MNCs and Competition:
While MNCs may have a large market share in certain industries, their presence does not necessarily increase competition. In fact, MNCs often have significant advantages over smaller domestic companies, such as greater financial resources, access to global markets, and economies of scale. These advantages can make it difficult for smaller competitors to effectively compete with MNCs, leading to less competition rather than more.

2. MNCs and Price Wars:
Price wars typically occur when companies engage in aggressive price-cutting strategies to gain market share. While MNCs may engage in price competition, it is not accurate to say that MNCs directly increase price wars. Price wars are more likely to occur when there is intense competition among companies in a particular market, regardless of whether they are MNCs or domestic companies. Additionally, MNCs may have the financial capacity to sustain price wars for longer periods, which can further discourage smaller competitors from entering the market.

3. MNCs and Quality:
MNCs often have a reputation for providing high-quality products and services, as they are driven by the need to maintain their brand image and customer loyalty across different markets. However, it is important to note that MNCs do not automatically increase the overall quality of products or services in a market. Quality can vary among MNCs, and domestic companies may also offer products and services of comparable quality or even higher quality in certain cases.

In conclusion, while MNCs have a significant impact on the global economy, it is not accurate to say that they directly increase competition, price wars, or quality. The effects of MNCs on these factors depend on various market dynamics and the specific strategies employed by individual companies.