Angora wool is extracted from rabbits. The fur of rabbits, specifically the Angora breed, is used to produce Angora wool. This wool is known for its softness, warmth, and luxurious feel.

Option 2: Sheep do produce wool but not Angora wool. Sheep wool is commonly referred to as just "wool", while Angora wool specifically comes from rabbits.

Option 3: Foxes do not produce wool. They have fur, which is different from wool.

Option 4: Although goats produce a type of wool called cashmere, it is not the same as Angora wool. Cashmere comes from the inner coat of goats, while Angora wool comes from rabbits.

In conclusion, Angora wool is extracted from rabbits, not sheep, foxes, or goats.