The sentence that correctly uses the word "principal" is the second sentence. The word "principal" refers to the person who has the highest authority in an institution, particularly as referred here, which is a school. On the rest of the sentences, the right word to be used is "principle" and not principal.
Answer:
The correct answer is: It suggests that artificial technologies will develop the ability to reason.
Explanation:
In his book <em>The intelligence planet</em>, Michio Kaku describes the development and importance of artificial technologies and states that in the future people will be able to improve artificial intelligence and to the things and technologies, so there won't be necessary to control it by humans. Therefore, the scientist will be able to develop one of the biggest intelligence networks, based on machines and its technologies, that will replace humans and their intelligence in many procedures and tasks.
Farther. Further is metaphorical, using "farther" in this case because <span>“farther” has the word “far” in it, and “far” obviously relates to physical distance. Therefore the town is fifteen minutes farther up the road </span>
They are not dum they are about the most helpless creatures alive
