Trustee T sold a trust asset for $50,000 at a time when it was worth $60,000. It subsequently went up in value to $80,000. In which of the following circumstances would the beneficiaries be entitled to collect $30,000 in damages from the trustee? 
a) A prudent trustee would have sold it for $60,000. 
b) The trustee sold the property to his wife. 
c) The trustee was instructed by the trust instrument not to sell the asset. 
d) Both b and c.