The following graph depicts changes in two populations

The following graph depicts changes in two populations (A and B) of herbivores in a grassy field A possible reason for these changes is that:

1. Population B competed more successfully for food than population A
2. Population A produced more offspring than population B
3. Population A consumed the members of population B
4. Both plant populations in this habitat decreased

The given graph illustrates that population B got success in the grassy field in comparison to population A.