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What will backward chaining algorithm will return?

(a) Additional statements

(b) Substitutes matching the query

(c) Logical statement

(d) All of the mentioned

The question was posed to me in an internship interview.

This key question is from Backward Chaining topic in division Logical Agents of Artificial Intelligence

Select the correct answer from above options

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Right answer is (b) Substitutes matching the query

To elaborate: It will contains the list of goals containing a single element and returns the set of all substitutions satisfying the query.
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