Assertion (A): PRECIS was originally developed by the British National Bibliography, replacing the chain indexing, to provide subject index for UK/MARC records.
Reason (R): Chain index was not successful for production of subject index by computer.
In the context of these two statements, which one of the following is correct?
1
(A) is true, but (R) is false.
2
(A) is false, but (R) is true.
3
Both (A) and (R) are false.
4
Both (A) and (R) are true.