Final answer:
The conversion factor from pints to gallons is 8, as there are 2 pints in a quart and 4 quarts in a gallon.
Step-by-step explanation:
The conversion factor from pints to gallons is key to solving this question. To perform this conversion, we need to use the relationship between these two units of volume. According to the information provided, there are 2 pints in 1 quart and 4 quarts in 1 gallon. Therefore, the conversion factor from pints to gallons is calculated as follows: 2 pints in a quart multiplied by 4 quarts in a gallon equals 8 pints in a gallon. Hence, the correct conversion factor is 8.
To summarize the conversion: 1 gallon = 4 quarts and 1 quart = 2 pints, so 1 gallon = 2 pints x 4 = 8 pints.