निम्नलिखित में से किसे स्वास्थ्य सुरक्षात्मक व्यवहार नहीं माना जाता है?

Which of the following statements describes a healthy habit? I. Avoid consuming fast food frequently, as it provides excess calories and salt, leading to obesity and increased blood pressure. II. Walking is a good exercise to tone muscles, reduce excess weight, and keep the heart healthy.

According to the World Health Organization (WHO), what is the recommended minimum duration for washing hands with soap and water to ensure effective sanitation?