The correct answer is: A. Progression planning.
Forward state-space search is a type of search algorithm that starts at the initial state and explores all possible states until it finds a goal state. It is also known as progression planning because it progresses from one state to the next in a forward direction.
Regression planning is a type of search algorithm that starts at the goal state and backtracks to find a path to the initial state. It is also known as backtracking because it backtracks to previous states when it finds that a particular path is not feasible.
Test planning is a type of planning that involves identifying and testing all possible scenarios that could occur. It is also known as contingency planning because it involves planning for all possible contingencies.
None of the mentioned options are the other name for forward state-space search.