Punjab is a major producer of wheat due to:

The correct answer is: d) All of the above

Punjab is a major producer of wheat due to the following reasons:

• Fertile alluvial soils: The soil in Punjab is very fertile due to the annual flooding of the Indus River. The Indus River carries rich silt from the Himalayas, which deposits on the land when the river floods. This silt makes the soil very fertile and ideal for growing wheat.
• Favorable climate: The climate in Punjab is also ideal for growing wheat. The region has a temperate climate with hot summers and mild winters. This climate allows wheat to grow well and produce high yields.
• Irrigation development: The Punjab region has a well-developed irrigation system. This irrigation system allows farmers to water their crops even during the dry season. This is essential for growing wheat, as wheat is a thirsty crop.

All of these factors contribute to Punjab being a major producer of wheat.