Option Base number
Declares the default lower bound for array subscripts.
The Option Base statement is never required. If used, it can appear only once in a module, it can occur only in the Declarations section, and must be used before you declare the dimensions of any arrays.
The value of number must be either 0 or 1. The default base is 0.
The To clause in the Dim, Global, and Static statements provides a more flexible way to control the range of an array's subscripts. However, if you don't explicitly set the lower bound with a To clause, you can use Option Base to change the default lower bound to 1.
The example uses the Option Base statement to override the default base array subscript value of 0.
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