Attributable data should be:

A.
always traced to individuals responsible for observing and recording the data

B.
sometimes traced to individuals responsible for observing and recording the data

C.
never traced to individuals responsible for observing and recording the data

D.
often traced to individuals responsible for observing and recording the data

Explanation:
As per FDA data should be attributable, original, accurate, contemporaneous and legible.
In an automated system attributability could be achieved by a computer system designed to identify individuals
responsible for any input.
U.S. Department of Health and Human Services, Food and Drug Administration, Guidance for
Industry – Computerized Systems Used in Clinical Trials, April 1999, page 1.