The Software Requirement Specification (SRS) is said to be ________ if and only if no subset of individual requirements described in it conflict with each other.

Explanation

By the IEEE 830 definition an SRS is consistent if and only if no subset of the individual requirements stated in it conflicts with another subset — conflicts may be in terminology, in logical or temporal characteristics, or in described behaviour. An SRS is correct if every requirement in it is one the software must actually meet, unambiguous if every requirement has exactly one interpretation, and verifiable if a finite cost-effective process exists to check that the software meets each requirement. Only consistency is about requirements contradicting one another, so option (ii) is correct.