Which of the following is developed based on speculation about the cause of a problem?

A) A hypothesis
B) Problem factoring
C) A yardstick solution
D) A feasibility report
E) Failure analysis

A hypothesis is a proposed explanation or speculation about the cause of a problem. It is a statement that can be tested through experimentation or further investigation. The other options listed are not necessarily based on speculation about the cause of a problem. Problem factoring involves breaking down a problem into smaller parts. A yardstick solution is a straightforward approach to solving a problem that has been used successfully in the past. A feasibility report assesses the potential of a solution to be successful. Failure analysis involves investigating the factors that led to a particular failure.