A.) MELANCHOLY is the answer
The definition of hallow is
<em>greatly revered of respected</em>
<em>make holy, consecrate</em>
<em>honor as holy</em>
so I would say that it means greatly revered of respected
I would say maybe when someone invites you somewhere but you don't really want to go because you don't think it will be fun at all. That is prejudging a situation.
