How do you calculate the processing time from the order date to the ship date?

You have two columns: order date and ship date.

How do you calculate the processing time from the order date to the ship date?
A . Use the "daynumberofyear" function after subtracting both dates.
B. Use the "daysbetween" function with order date and ship date.
C. Use the "currentdate" function and subtract the ship date.
D. Use the "isdate" function on both dates and subtract the dates.

Answer: B