You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.

The horses haven't been eating the pears left out for them, however they enjoy the muffins. The _ must be delicious to them.
muffins

The digger dug up the headstone but not the casket in the graveyard since the _ was worthless.
casket

The letter costed less to send than the package did because the _ was lighter.

letter