Answer: Longing
Reasoning: The mood is longing because she is waiting and desiring for the food so she can eat.
The clear and obvious English of the title "A Valediction: Forbidding Mourning" means D. a farewell urging the listener not to be sad.
The speaker points out that he is compelled to consume his time apart from his beloved, but before he go, he explains that goodbye should not be the event of sorrow and mourning.