Consider this valid program in an unknown language.

fun :$=$ biz$($a:$=2,$ b:$=3)$:

return a$**$b$,$ b$**$a

arr :$=$ biz$($b:$=4)$

From this program, what can you infer about the language?

Group of answer choices

supports named parameters

allows multiple return values

requires a return type

allows multiple return statements

supports nested functions

supports default parameters

supports variable number of parameters