hey there~
1. This is actually a good question and is quite frequently asked.
Architecture is the art and science of designing structures that organize and enclose space forpractical and symbolic purposes. Because architecture grows out of human needs and aspirations,
The very beginning of the passage is where you get the hint.
Although option choice 2 is mainly from another paragraph, the beginning of par. 1 is the definition of architecture so when you connect the logic, it makes sense.
2. for question #1, creator refers to humans. Actually, the question is specifically for paragraph 1 and the word "architect" isn't even mentioned in par. 1