Final answer:
The statement regarding writing being more perfect than speech is partly true because each mode of communication has its own strengths. A hypothesis is closest in meaning to a suggestion, and learning to read and write is a manifest function of schools.
Step-by-step explanation:
The notion that writing is more perfect than speech is partly true. Writing allows for editing and refinement which speech does not, yet speech can convey nuances through tone and inflection which writing cannot. There is no absolute answer as both written and spoken language have their unique advantages and imperfections.
When considering which of the following words is closest to the same meaning as hypothesis, the correct answer is d, which stands for suggestion. A hypothesis is a proposed explanation made on the basis of limited evidence and is a starting point for further investigation, much like a suggestion.
In terms of the functions of school, teaching students to read and write is a manifest function. Manifest functions are the recognized and intended consequences of any social pattern, and in this context, it refers to the explicit teaching of literacy skills.