With reference to food chains in ecosystems, consider the following statements: 1. A food chain represents the sequence in which a series of organisms feed on each other's food. 2. Food chain is found within the population of a species. 3. The food chain represents the number of each organism that is eaten by others. Which of the above statement(s) is/are correct?

• A. only 1
• B. 1 and 2
• C. 1,2 and 3
• D. none of these