The correct option is
D If Option A is chosen, the shape will still remain closed. Therefore, Option A is incorrect.
(Multiple combinations are possible, but they will be incorrect.)
If Option B is chosen, the shape will still remain closed. Therefore, Option B is incorrect.
(Multiple combinations are possible, but they will be incorrect.)
If Option C is chosen, the shape will still remain closed. Therefore, Option C is incorrect.
(Multiple combinations are possible, but they will be incorrect.)
If Option D is chosen, the shape will open.
Therefore, Option D is correct.
Hence, Option D is correct.