Answer:
The correct answer is option C (Using subgoals)
Step-by-step explanation:
Heuristic strategy talks about methods undertaken to simplify problems with the aim of solving them. The heuristic strategy ensures some sort of easy step to bring about solutions to problems using the strength of the mental process.
The correct answer is not “Working Backwards”, as “Working Backwards” is more applicable when there is a particular endpoint to the problem and the problem occurs with a sequence of events showing how the problem needed to be solved first from the mind. While when we talk about intermediate steps or tasks to reach a goal then we need to mention "Using subgoals" because it employs a strategy to divide problems into intermediates (parts} to make solving the problem faster.