One reason is that the two kinds of birds live in two different types of environments and also the sharp billed ground finch does not just it plant matter. It feast on the blood of bigger sea birds. This is an adaptation that it has so it does not have to eat plant matter and compete for food
Sharp-billed are small birds, measuring at most centimeters. They are brightly colored birds that sing frequently, which makes them very coveted by hunters and bird watchers.
There are different types of sharp-billed, but all types have characteristics in common, in addition to being herbivorous animals.
It is possible that all types of sharp-billed live peacefully in the same area, without causing competition for food. This is because each type of sharp-billed has a different preference in relation to the plant that is being consumed, even if they share the preference for the same plant, competition can be avoided if each type of sharp-billed lives in a different region, or if they eat at different times.
Option A. received less money for their crops is the correct answer.
The Green revolution's large crops made poor farmers to receive less money for their crops. As the production increased to a large extent due to the Green Revolution, it lead to the fall of prices of crops and thus the poor farmers had to sell their crops at cheap rates.