question: land:farmer
choices.label: A B C D
choices.text: capital:businessman prescription:doctor party:singer textbook:teacher
explanation: "land" is what "farmers" need for farming, and "land" is a necessary condition for "farmers" to engage in agricultural production activities. "capital" is what a "businessman" needs to do business, and "capital" is a necessary condition for a "businessman" to conduct business. a "doctor" prescribes a "prescription". the "singer" sings at the "party". "teachers" use "textbooks" to teach.
relation: farmer land R3.6