Explanation: In the context of Indian politics, political parties are categorized into State Parties and National Parties based on their performance in elections and their presence across the country. The Election Commission of India sets specific criteria for recognizing a party as a National Party, which includes winning at least 2% of the total seats in the Lok Sabha or 6% of the seats in a state assembly, among other conditions.
State Parties, on the other hand, are those that have a significant presence in one or more states but do not meet the criteria for National Party status. These parties often focus on regional issues and have a strong base in their respective states.
Let's examine each option in detail:
- **TDP (Telugu Desam Party)**: This is a State Party primarily active in the states of Andhra Pradesh and Telangana. It was founded in 1982 and has been a significant political force in these states, but it does not have a pan-Indian presence. Therefore, it is not recognized as a National Party by the Election Commission of India.
- **DMK (Dravida Munnetra Kazhagam)**: This is another State Party, primarily active in the state of Tamil Nadu. It was founded in 1949 and has been a dominant political force in Tamil Nadu, but it does not meet the criteria for National Party status. Hence, it is not recognized as a National Party.
- **SAD (Shiromani Akali Dal)**: This is a State Party primarily active in the state of Punjab. It was founded in 1920 and has a strong presence in Punjab, but it does not have a pan-Indian presence. Therefore, it is not recognized as a National Party by the Election Commission of India.
- **CPI (Communist Party of India)**: This is a National Party recognized by the Election Commission of India. It has a pan-Indian presence and has been active in various states across the country. The CPI meets the criteria for National Party status, which includes winning at least 2% of the total seats in the Lok Sabha or 6% of the seats in a state assembly. Therefore, it is recognized as a National Party.
In conclusion, the correct answer is (D) CPI, as it is the only National Party among the given options. The other parties (TDP, DMK, and SAD) are State Parties with a significant presence in their respective states but do not meet the criteria for National Party status.