* Está bien, Padre: This is a very literal translation and generally works well. "Está bien" means "Okay" or "All right," and "Padre" means "Father."
* De acuerdo, Padre: This translates to "Okay, Father" or "Agreed, Father," and sounds a bit more formal.
* Sí, Padre: This simply means "Yes, Father." It's appropriate if the father asked a question that you're agreeing to.
* Vale, Padre: This is a more informal version of "Okay, Father," using "Vale" which is similar to "Okay" or "Alright."
The best option depends on your relationship with the father and the situation. If you're talking to a priest, "Está bien, Padre" or "De acuerdo, Padre" are probably the most suitable. If it's your own father and the context is informal, "Vale, Padre" might be better.