In the context of business and finance, particularly when dealing with situations involving bankruptcy, the term used for an individual appointed to manage and sell off the assets of a bankrupt firm is a Liquidator. Here's why this is the correct answer:
The role of a liquidator is pivotal in ensuring that all assets are sold in an orderly manner and that the proceeds are used to settle any outstanding debts. This helps in fair distribution of funds and orderly closure of a bankrupt firm.
Therefore, the correct answer is A Liquidator.