the answer is true because . Johann Gutenberg's invention of the printing press around 1448 had a significant impact on the spread of ideas in Europe and beyond. Printing technology traveled quickly across Europe and, at a time of great religious change, played a key role in the success of the Protestant Reformation
Answer: Without language, human culture would be little more advanced than lower primates.
Explanation: Language can be defined as a body of words, and a set of methods for combining them understood by a community and used as a form of communication. The lower primates include lemurs, bush babies, lorises etc. The major distinguishing factor between humans and the lower primates is language as they both a lot of similar characteristics.
I think that the key point here is the "easily reproducible" - because all of them can be scientific questions (even a! it could tell us about about the human psyche!)
but d. is the best answer for a reproducible experiment. B could also make a good experiment, but it would be too expensive to be easily reproducible. C is calling for a more complex analysis that is too complex for an experiment. And a would require more questionnaires than experiments
