Correct Answer: Wheat
  

Solution : The correct answer is (a) Wheat.

The Green Revolution was a series of agricultural initiatives and technological advancements implemented in India during the 1960s and 1970s. It aimed to address food security concerns by increasing agricultural productivity and reducing dependence on food imports.

The initial focus of the Green Revolution in India was on increasing wheat production. High-yielding varieties of wheat, along with the adoption of modern agricultural practices such as the use of chemical fertilizers, pesticides, and improved irrigation methods, played a significant role in boosting wheat production. This led to a substantial increase in wheat yields and helped India achieve self-sufficiency in wheat production.

While the Green Revolution also had an impact on rice production, wheat was the primary crop that witnessed significant improvements in terms of productivity and overall production. The success of the Green Revolution in wheat laid the foundation for similar initiatives in other crops and contributed to India's agricultural transformation.