Answer:
The answer is not within the options provided. However, the answer to the question is group price discrimination.
Explanation:
Group price discrimination refers to a pricing method that bills customers differently for a particular service or goods. The extra charge is usually due to added services such as home delivery, special orders and so on.
From our scenario, the customer-base of pizza joints are divided into two and priced differently. The prices for pizza delivered to customers is substantially higher than the pizza picked up at the shop. This discrimination is known as group price discrimination.