IMO D.
This is a Subject-Verb agreement problem. First task is to find out what the subject of this sentence is.
Subject: 20 percent of the leaf and small-stem material
Is the Subject singular or plural ? The word 'material' like the word 'furniture' is singular. So 20% of the material should also be singular.
So the Verb should be Shatters and Falls.
P.S.'which is the most nutritious parts of the plant,' ( this is the modifier )
This is a Subject-Verb agreement problem. First task is to find out what the subject of this sentence is.
Subject: 20 percent of the leaf and small-stem material
Is the Subject singular or plural ? The word 'material' like the word 'furniture' is singular. So 20% of the material should also be singular.
So the Verb should be Shatters and Falls.
P.S.'which is the most nutritious parts of the plant,' ( this is the modifier )
