Why are the gravediggers debating about whether Ophelia
deserves a Christian burial?

They are debating this as her cause of death was s uicide.

Explanation:

One argument is that the Church forbade burials when a deliberate death happened on consecrated ground, as Ophelia's did. The argument against this is that Ophelia's death was not in fact a s uicide but accident, or if it was s uicide it was simply a product of her madness and not a reflection on Ophelia's true Christian soul.

because the monkey liked the beaf

explanation:

adjfncc

it is the background information on the characters and setting explained at the beginning of the story. the exposition will often have information about events that happened before the story began. the exposition is often the very first part of the plot.