Lionel prepares tax returns for a living. He also completes the tax returns for several of his family members. Lionel doesn't charge anyone who is related to him and therefore does not sign their returns. Which of the following statements is true? A. Lionel does not have to sign any tax returns he prepares. 8. Lionel isn't required to sign his family returns because he does not charge for those, but he must sign any returns he prepares for compensation CLionel must sign every return he prepares, regardless of whether be charges the customer or not D. Lionel doesn't have to sign the first 10 returns he prepares, but everything over that must be signed