Rainfall patterns and water availability significantly influence:

The correct answer is: d) All of the above.

Rainfall patterns and water availability significantly influence crop selection, irrigation methods, and crop yields.

• Crop selection: The type of crops that can be grown in a particular area is determined by the amount of rainfall and the availability of water. For example, crops that require a lot of water, such as rice, cannot be grown in areas with low rainfall.
• Irrigation methods: Irrigation is the artificial application of water to crops. The type of irrigation method that is used depends on the amount of rainfall and the availability of water. For example, drip irrigation is a more efficient method of irrigation than flood irrigation, and it is often used in areas with low rainfall.
• Crop yields: Crop yields are the amount of produce that is harvested from a given area. Crop yields are affected by the amount of rainfall, the availability of water, and the type of irrigation method that is used. For example, crop yields are typically higher in areas with high rainfall and where irrigation is used.

In conclusion, rainfall patterns and water availability significantly influence crop selection, irrigation methods, and crop yields.