instruction:
In this task you are given a sentence. You must judge whether subject of the main clause is singular or plural. Label the instances as "Singular" or "Plural" based on your judgment.
question:
The only option she had was to get the robe herself.
answer:
Singular

question:
Those concepts that knew nothing of Fate's error had expected something more physically daunting than the duo that faced them.
answer:
Plural

question:
The long habit of obedience held : Laurence flung himself out of the room.
answer:
Singular