Explanation:

- Option 1: in the cupboard

- This phrase correctly specifies the location. It is grammatically correct.

- Option 2: Although the toys

- This segment is grammatically correct and appropriately introduces the sentence with a subordinate conjunction.

- Option 3: are altogether

- This is the incorrect segment. "Altogether" means "completely" or "entirely," which doesn't fit here. The correct word should be "all together," meaning "in one place."

- Option 4: are not properly arranged

- This phrase is grammatically sound and logically concludes the sentence by describing the arrangement.