Hudson and Blanche Are the Trustees of a Discretionary Trust

Hudson and Blanche are the trustees of a discretionary trust in favour of the employees of New Hudson Enterprise Ltd. They are seeking to lawfully delegate some their trustee functions to other, more experienced persons and so free up their own time to go on ocean cruise holidays. Which of the following functions may Hudson and Blanche not delegate under the general delegation powers in the Trustee Act 2000?

A) Any of their functions, as they must have a good reason to delegate any function to another.
B) The power to decide which of the employees of New Hudson Enterprise Ltd are to benefit under the discretionary trust.
C) Decisions as to how to invest the trust property in the best interests of the beneficiary.
D) The organisation of an auction to sell trust property that Hudson and Blanche have decided should be sold and the proceeds added to the capital of the trust,