2021 Environment - Pollination and biodiversity

On the basis of the passage given above, the following assumptions have been made :1. Sustainable production of India's cereal food grains is impossible without the diversity of pollinating animals.2. Monoculture of horticultural crops hampers the survival of insects.3. Pollinators become scarce in cultivated areas devoid of natural vegetation.4. Diversity in insects induces diversity of plants.Which of the above assumptions is/are valid?

• 1 only
• 2, 3 and 4 only
• 1 and 2 only
• 3 and 4 only