qb45qck.hlp (Table of Contents; Topic list)
OPTION BASE Statement QuickSCREEN
  QuickSCREEN      Details      Example      Contents      Index
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OPTION BASE - a BASIC declaration that declares the default
              lower bound for array subscripts
 
Syntax
  OPTION BASE n
    ■ n, a numeric expression, must have a value of 0 or 1.
 
See Also  LBOUND  DIM