Answer: Fabio's attitude changed because he'd be in the parade.
Explanation: Fabio is excited to be able to participate in the parade. The focus of the question isn't on why he'd be in the parade or how? But on what makes his attitude change. Every other factor mentioned corroborates that he'd be participating in the parade.
Among the choices, letter B is the most complex. This is because it uses two clauses just to deliver its meaning. Jamming a lot of clauses in one sentence would cause the reader to be 'breathless'. A good sentence must be short enough to be read in one breath, but precise in meaning. One clause could be enough. If you want to add more information, you can use conjunctions or transition words. But do not overdo it.
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>
2nd one
For example, forests help the environment by soaking up carbon dioxide, conserving soil, and preventing flooding.