Step 1: National Political Parties in India
As per the Election Commission of India, a national party is a party which secures at least 6% of the total votes in any four or more states and has at least 4 seats in the Lok Sabha.
Step 2: Current National Parties
Currently, India has five national political parties, which are:
1. Bharatiya Janata Party (BJP)
2. Indian National Congress (INC)
3. Communist Party of India (CPI)
4. Communist Party of India (Marxist) - CPI(M)
5. Nationalist Congress Party (NCP)
Step 3: Conclusion
Thus, the correct answer is option (B) Five.
The following table shows the ages of the patients admitted in a hospital during a year. Find the mode and the median of these data.
\[\begin{array}{|c|c|c|c|c|c|c|} \hline Age (in years) & 5-15 & 15-25 & 25-35 & 35-45 & 45-55 & 55-65 \\ \hline \text{Number of patients} & \text{6} & \text{11} & \text{21} & \text{23} & \text{14} & \text{5} \\ \hline \end{array}\]