When you are unsealing Vault using unseal keys, what are you actually doing?

Comprehensive and Detailed In-Depth Explanation:

Unsealing involves:

C. Reconstructing the root key : " Unsealing is the process of obtaining the plaintext root key necessary to read the decryption key to decrypt the data, allowing access to the Vault. " The unseal keys reconstruct this root key via Shamir’s Secret Sharing.

Incorrect Options :

A : Recovery keys are separate.

B : Keys aren’t exported during unseal.

D : Data decryption is a result, not the action.