आबादी को संक्रामक रोगों से बचाने के लिए निम्नलिखित में से किसे सबसे प्रभावी प्राथमिक रोकथाम रणनीति माना जाता है?

With reference to cancer metastasis, consider the following pairs: Term — Description I. Metastasis — Spread of cancer cells from the primary site to distant organs II. Tumour microenvironment — Cellular and molecular surroundings influencing tumour growth III. Benign tumour — Tumour with unlimited invasive metastatic potential How many of the above pairs are correctly matched?

Prevention of non-communicable diseases requires modification of lifestyle factors such as diet, exercise and smoking to reduce: