Which of the following statements distinguishes Hegel's absolute idealism from Kant's transcendental idealism?

Which of the following statements distinguishes Hegel's absolute idealism from Kant's transcendental idealism?

a. Kant's transcendental idealism is subjective, and so he differed from Hegel in thinking that objective reality exists only in human minds.

b. Unlike Kant, Hegel took the unity of thought found in judgment to be essential to understanding the unity of subject and predicate in facts.

c. Kant identified thought with reality, while Hegel held that the absolute was unthinkable.

d. Hegel held that reality was the expression of thought, and so that there is no thing-in-itself that exists beyond the realm of human thought.