Solution

The correct answer is option 1.

Key Points

Branch-and-bound:  

Keeps track of all partial paths which can be a candidate for further exploration. (ex: A* Search, BFS)

Steepest-accent hill climbing: 

Considers all moves from the current state and selects the best move. (ex:hill-climbing algorithm. )

Constraint satisfaction: 

Discovers problem state(s) that satisfy a set of constraints. (ex: Eight queens puzzle. Map coloring problem.)

Means-end-analysis: 

Detects the difference between the current state and the goal state. (ex: Means-end-analysis)

∴ Hence the correct answer is A - I, B - IV, C - III, D - II.