; (B) on the ground of privilege against self-incrimination, to respond to a material question approved by the court or to testify, after the debtor has been granted immunity with respect to the matter concerning which such privilege was invoked; or (C) on a ground other than the properly invoked privilege against self-incrimination, to respond to a material question approved by the court or to testify. (b) Disposal of case If the court revokes an order of confirmation or an order of discharge under subsection (a), the court shall convert or dismiss the case under section 1005. IV Avoidance actions 1041. Treatment of certain liens The trustee may avoid a lien that secures a claim of a kind described in section 726(a)(4). 1042. Limitations on avoidance actions The trustee may not bring an action to avoid a transfer or obligation under section 544, 545, 547, 548, 553, or 1041, unless there are allowed unsecured claims against the estate that the debtor does not propose to pay in full under a repayment plan. V Limited proceedings 1051. Election of limited proceeding (a) In general (1) Election of limited proceeding In a case commenced under section 301 or 302, a debtor that is eligible to file under this chapter may, as part of the petition for relief, elect to conduct a limited proceeding that affects only claims secured by specific items of the property of the debtor under this subchapter. (2) General proceeding as default If the debtor does not elect to conduct a limited proceeding in a case under this chapter— (A) the case shall proceed as a general proceeding under this title; and (B) this subchapter shall not apply to the case. (b) Limitation on election (1) In general After the entry of order for relief, the debtor may not elect to conduct a limited proceeding. (2) Election after dismissal Nothing in this section shall preclude a debtor, subsequent to the dismissal of a case, from— (A) filing a petition under section 301 or 302