Will’t is short for what ?

Question

That's my last Duchess painted on the wall,
Looking as if she were alive. I call
That piece a wonder, now: Fra Pandolf's hands
Worked busily a day, and there she stands.
Will’t please you sit and look at her? I said

Answer 1

Contraction for "will it". There is also an understood "to" that belongs with the infinitive "sit", so the sentence expands to "Will it please you to sit and look at her?" In other words, "How would you like to sit and look at her?"

The guest could answer, "Indeed, 'twill."

Answer 2

Will not

Answer 3

i think it stands for 'will it'