The task is about reading the given context, group and MCQs and then generating answers from the given input. MCQs are multiple choice questions in which a question is asked and few options are given, among which one or in some cases more than one can be the answer.

[EX Q]: context: A person is trying to stack blocks, balls, plates, and boxes.<sep>group: stacking <sep>question: Which are the hardest to stack?<sep>A: blocks<sep>B: balls<sep>C: plates<sep>D: boxes
[EX A]: The balls are the hardest to stack.

[EX Q]: context: A person is trying to move a pile of balls, a pile of books, a pile of bottles, and a pile of rice from one side of a room to the other using only one hand.<sep>group: grasping <sep>question: Which pile is the hardest to move?<sep>A: balls<sep>B: books<sep>C: bottles<sep>D: rice
[EX A]: The pile of books is the hardest to move.

[EX Q]: context: A person is trying to roll an apple, a mirror, an egg, and a ball.<sep>group: rolling <sep>question: Which is the hardest to roll?<sep>A: apple<sep>B: mirror<sep>C: egg<sep>D: ball
[EX A]:
The mirror is the hardest to roll.