What payment method has the highest churn rate among all payment types?

What payment method has the highest churn rate among all payment types?: a task in SmolDataEnvs-harbor-train-sandbox: 📊 SmolDataEnvs: Harbor (train) (Harbor dataset). Files (in /home/user/input, no subfolders): - WA Fn-UseC -Telco-Customer-Churn.csv