Answer the following statements true (T) or false (F)

1) The counter (loop control variable) used in a FOR loop need not be declared
explicitly.
2) The SELECT statement must have a mandatory INTO clause when used in a
PL/SQL block.
3) The group functions are not supported in PL/SQL statements, but single-row
functions are.
4) The GRANT statement is allowed in PL/SQL block.
5) When two PL/SQL blocks are nested, the variables declared in the outer block are accessible in the inner block.

1) T
2) T
3) T
4) F
5) T