Final answer:
To ensure an even pour from one bottle of wine to 8 guests, approximately 6 ounces of wine should be poured into each guest's glass.
Step-by-step explanation:
To ensure that each guest receives an even pour from one bottle, the total amount of wine in the bottle needs to be divided equally among the 8 guests. Let's say the total amount of wine in the bottle is x ounces. To find out how many ounces of wine should be poured into each guest's glass, we divide the total amount of wine by the number of guests. So, x/8 ounces of wine should be poured into each guest's glass. Since the question asks for an approximate answer, we can round up or down to the nearest whole number. Therefore, the answer is d) 6 ounces of wine should be poured into each guest's glass.