To answer this question, let's go through each option:
Option A) 256 - This option is incorrect because Easytrieve does not have a maximum limit of 256 fields per file.
Option B) 64 - This option is incorrect because Easytrieve does not have a maximum limit of 64 fields per file.
Option C) UNLIMITED - This option is correct. Easytrieve does not have a maximum limit on the number of fields per file. You can define as many fields as you need in a file.
Option D) 12 - This option is incorrect because Easytrieve does not have a maximum limit of 12 fields per file.
Therefore, the correct answer is C) UNLIMITED. Easytrieve does not have a maximum limit on the number of fields accepted for each file.