A self describing file makes use of an header record index
A self describing file makes use of a(n) __________.
header record
index
variable record structure
blocking scheme
| a | header record | |
| b | index | |
| c | variable record structure | |
| d | blocking scheme | 
Solution
A self describing file makes use of a(n) _variable record structure_. Therefore, option c is correct.
Self describing file uses class and name inplace of traditional positional method in order to construct generic tools.

