But we're going to have lowercase red C. And so that means this individual will be colorblind just like this color blind parents. So now that we have the pun and square, let's go to A-B-C and Z. And let's begin with A. Now, before we jump to A, notice that we have four individual cases and each one of these case and each one of these cases have equal likelihood of taking place. So we have a 25% chance of this event taking place, a 25% chance of this event taking place, a 25% chance here and a 25% chance here. And together, if we add up these likelihoods, we get 100%.