Final answer:
Person B ate 5/8 of the pizza after Person A ate 3/8 since the remaining portion equals the total minus what Person A consumed.
Step-by-step explanation:
The question asks us to determine how much of the pizza Person B eat if Person A ate 3/8 of a large pizza. Since a whole pizza is considered as a total of 8/8, and Person A consumed 3/8 of it, we subtract that amount from the whole to find out what portion remains for Person B.
Here's the step-by-step process:
Start with the entire pizza: 8/8.
Subtract the portion Person A ate: 8/8 - 3/8 = 5/8.
The result shows that Person B ate 5/8 of the pizza.
Therefore, the correct answer is (a) 5/8.