#forward-search

Question 1: Select all that apply

A problem's solution needs several actions. Compare the first action that each planner adds to its plan with the position of that action in the final plan. Which statements are true? Select all that apply.

The first action chosen by forward state-space planning is the first one executed1
The first action chosen by backward state-space planning is the last one executed2
The first action added by plan-space planning can end up first, last or in between3
The first action chosen by backward state-space planning is the first one executed4
In plan-space planning, the order of actions is fixed when each action is added5

Timed test