The term ___________ is used for a depth-first search that chooses values for one variable at a time and returns when a variable has no legal values left to assign.
(a) Forward search
(b) Backtrack search
(c) Hill algorithm
(d) Reverse-Down-Hill search
This question was posed to me in an interview for internship.
Asked question is from Constraints Satisfaction Problems topic in division Problem Solving of Artificial Intelligence
Select the correct answer from above options
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