Final answer:
To make a half batch of coffee, you would need 1 scoop of coffee beans. For a full batch, you would need 4 scoops of coffee beans.
Therefore, correct option is A.
Step-by-step explanation:
To determine the number of scoops of coffee beans for different batches of coffee, we need to compare the quantities of water and coffee beans required for each batch.
The coffee maker's instructions tell us to use 4 cups of water and 3 scoops of coffee beans for one batch.
Based on this, we can use a ratio to find the number of scoops for a half and a full batch.
A half batch would require 2 cups of water, which is half of 4 cups, and half of 3 scoops of coffee beans, which is 1.5 scoops. Therefore, the answer is A. 1 scoop, 2 scoops, 4 scoops.