Thanks for posting,
yuchenh!
To address your question (and
jrnlsn.nelson's), let's clarify exactly what a generalization really is.
We 'generalize' when we take evidence (premises) about a single instance, or a small number of instances, and then make a grand conclusion about an entire group. If the sample is unrepresentative, or so small that it's likely to be unrepresentative, then you have a serious probably supporting the sweeping (generalized) conclusion!
Now, in this situation, you are both right that the premise is a single instance - a single cup depicting a brewery, and with alcohol in it. As a result, it would absolutely be a generalization to conclude that:
1) All Egyptians drank alcohol, or
2) Most Egyptians were familiar with breweries, or
3) beer was a common beverage in Egyptian society, or
4) Egyptians were typically aware of the variety of alcohol being produced in Egypt
All of those problematic generalizations have to do with making a claim about ALL or MOST or MANY of the people within the society.
Now, let's take a look at what our conclusion actually does: "
ancient Egyptians were the first society to produce alcoholic beverages."
This is not a claim about ALL or MOST or even MANY of the people within the society. In order for a society to be "the first to produce" something, all that needs to happen is that
one person in that society produces it.
If right now, in my living room, I successfully time travel, then America would be the first country to time travel (since I'm American). It doesn't matter than only one person has done it, that conclusion would be accurate.
Since this conclusion is not about ALL or MOST or even MANY of the people in the society, it's not at all a 'generalization'.
One thing that I find helpful on a lot of flaw answer choices is to look at what they seem to be saying about both the premise AND the conclusion. If an answer choice says an argument is flawed because it makes an XYZ conclusion on the basis of an ABC premise, there are three questions you need to ask.
1) Did the argument make an ABC premise?
2) Did the argument make an XYZ conclusion?
3) Is that really a flaw to do that?
In this case, the argument used the ABC premise (small sample - single cup!) - #1. And making generalizations on the basis of tiny samples is bad - #3. But the argument did NOT make a generalization conclusion.
Does this help clear things up a bit?