I would say C because you would need to be able to decipher what the work was trying telling you.
Answer:
I think it's recent studies suggest that the language changes ..
he correct answer to this open question is the following.
Although you forgot to include the options for this question, we can answer the following.
The word that best describes the author's attitude toward continuing on the "academic road to success" is "Neutral."
It is neutral because the author is just given recommendations on how to approach the road of academic success and life. The author is not being subjective nor adding personal comments that could bias its idea.
For instance, the author is not using optimistic ideas that try to motivate. On the other hand, the author is not adding pessimistic comments that could also bias its information.
That is why "neutral" is the best term to describe the attitude of the author.
