Read the following passage and answer. Your answers to these items should be based on the passages only.

Diarrhoeal deaths among Indian children are mostly due to food and water contamination. The use of contaminated groundwater and unsafe chemicals in agriculture, poor hygiene in storage and handling of food items to food cooked and distributed in unhygienic surroundings; there are myriad factors that need regulation and monitoring. People need to have awareness of adulteration and ways of complaining to the relevant authorities. Surveillance of foodborne diseases involves a number of government agencies and entails good training of inspection staff. Considering the proportion of the urban population that depends on street food for its daily meals, investing in training and education of street vendors is of great significance.

On the basis of the above passage, the following assumptions have been made:

1. Food safety is a complex issue that calls for a multipronged solution.

2. Great investments need to be made in developing the manpower for surveillance and training.

3. India needs to make sufficient legislation for governing the food processing industry.

Which of the above assumptions is/are valid?