Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences? 

1. Pollination of some plants could be adversely affected.

2. There could be a drastic increase in the fungal infections of some cultivated plants.

3. It could lead to a fall in the population of some species of wasps, spiders, and birds.

Select the correct using the code given below: