Which Pos() function syntax should you use to find the location of the space in the Category string "Evening wear"? Please choose the correct answer.

Which Pos() function syntax should you use to find the location of the space in the Category string "Evening wear"? Please choose the correct answer.
A . Pos([Category] , "" )
B. Pos((Category) , "" )
C. Pos([Category] ; " " )
D. Pos({Category} ; " " )

Answer: C