With reference to the Indian plan, consider the following statements: 1. The Second Five Year Plan laid emphasis on the establishment of heavy industries. 2. The Third Five Year Plan introduced the concept of import-substitution as a strategy for industrialization. Which of the above statement(s) is/are correct?

• A. only 1
• B. only 2
• C. 1 and 2
• D. neither 1 nor 2