Which of the following is not associated with surface irrigation?

The question is asking for the option that is not associated with surface irrigation. Surface irrigation is a type of irrigation where water is distributed over the soil surface by gravity, and is commonly used in agriculture to water crops. Option C, sprinkler irrigation, is not associated with surface irrigation because it involves spraying water over the crops, as opposed to letting it flow over the soil surface. Sprinkler irrigation is a type of overhead irrigation, where water is distributed through a network of pipes and sprinkler heads. Therefore, the answer is option C, sprinkler irrigation.