Multiple choice technology programming languages

Which of the following statements about PL/I arrays is TRUE ?

  1. multidimensional arrays are allowed. The maximum number of dimensions is 15.

  2. the elements in an array can only be of the numeric datatype

  3. a reference towards an element in an array is done by means of a subscript. The first occurrence of an element in an array has subscript 0.

  4. arrays are used to read in DB2 tables

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A Correct answer
Explanation

PL I permits arrays with up to 15 dimensions and elements can be any data type not just numeric. Array subscripts start at 1 by default, not 0, and arrays are memory structures not directly tied to DB2.