Final answer:
Health and Physical Education (HPE) becoming a compulsory subject in secondary level varies by country and region. No specific year can be universally established among the provided options without additional context. A trend towards standardization in HPE can generally be observed through the later part of the 20th century.
Step-by-step explanation:
The question 'When was HPE made a compulsory subject in secondary level?' pertains to a historical event in education policy. HPE, which stands for Health and Physical Education, has had varying timelines for becoming compulsory in different countries and regions. Without a specific location provided, it's challenging to pinpoint the exact year. However, among the provided options, there is no universally established year when HPE became a compulsory subject globally. Yet, we can reference general trends. Progressively throughout the 20th century, education systems began recognizing the importance of health and physical education, and by the late 20th century, many areas had adopted HPE as a part of their curriculum. To answer the question in a universal sense is not possible, but if we consider individual nations, systems like the United States saw HPE becoming more standardized within secondary education in the decades following 1950, due to concerns over national fitness. However, for a precise answer, one would need to refer to specific regional educational reforms.