One could argue that this is A. an appeal to logic. This is because of the methodological language used in the extract, e.g. 'rebuild', 'restrictions'. This is further evidenced by the focal point of the extract being the scientists as opposed to the individuals in the ring (hence making this not an appeal to emotion or ethics by creating a distance). Moreover, this means the author's character isn't being appealed to either due to the impersonal tone.
Explanation:
Within that address, Barack Obama is concentrating on two main issues;
- Reduction of the national debt as well as an emphasis on expenditure, especially on schooling. Obama claims that planning for the future of schooling would hold the running smoothly in the years.
- Government expenditure must be recognised by people since it impacts their everyday life, from taxation deducted from their pay packets to both the social welfare of all residents.