Of the following prompt syntax expressions, which two are considered to be dimensional?
1) <expression> -> ?<prompt name>?
2) <expression> in (?<prompt name>?)
3) <expression> = ?<prompt name>?
4) set(<expression> -> ?<prompt name>?)
A. 1 and 4
B. 1 and 2
C. 2 and 3
D. 3 and 4