Answer:
<em>Cathy's dad is going fishing today. </em>
Step-by-step explanation:
The first part of the text is giving us a conditional, something that has to take place first; to which an action is a dependant, this means that if the conditional is true, the action will happen.
The conditional is: the day is Saturday. The action is: Cathy's dad is going fishing.
The second part tells us that the conditional is true, today is Saturday, and since we know the action is a dependant (stated in the first part) it means the action will DEFINITELY happen, therefore Cathy's dad is DEFINITELY going fishing today (Saturday.), that is our conclusion.
