Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. What is the function of the sensory organs that the professor discusses
A．They detect nerve impulses transmitted to a grasshopper’s legs. B．They sense how far a grasshopper has jumped. C．They detect changes in air pressure. D．They help a grasshopper find food.