Answer:
The answer is d) it is too difficult to compute joint probabilities of events.
Step-by-step explanation:
The availability heuristis is a mental shorcut that leads people to have or draw conclusions based on what comes to our minds in an inmediate way. So when making decisions, we give a lot of importance of things that we recall quickly and things that we have or can already see in front of us.
It's about to the picture that comes to your mind first. What is most availabe to the person is the thing that is remembered instantly.