In which of the following group of countries of the world, HYVs of wheat and rice were developed?
Explanation
Option (C) is the correct answer. The provided context explicitly states that 'New seed varieties of wheat (Mexico) and rice (Philippines) known as high yielding varieties (HYVs) were available for cultivation by mid-1960s.' This directly links the development of HYV wheat to Mexico and HYV rice to the Philippines.
Solution Steps
Step 1: Scan the text for keywords 'HYVs', 'wheat', and 'rice'.
Step 2: Locate the sentence: 'New seed varieties of wheat (Mexico) and rice (Philippines) known as high yielding varieties (HYVs)...'
Step 3: Identify the countries associated with the crops: Mexico for wheat and Philippines for rice.
Step 4: Match these countries to the given options to select Option (C).