For example, the first value $($FL$\mathrm{.}2023\mathrm{.}17.$XS$)$ can be broken down as follows:

State: FL

Year: $2023$

Item number: $17$

Size: XL

What formula should be used to create a calculated field that holds the item number?

a$)$ SPLIT$([OrderID],1,,)$

b$)$ Split$(2,[$Order ID$],".")$

c$)$ Split$("/",1,[$Order ID$])$

d$)$ Order ID$],".",3)$