The question is asking to state why G.K. Chesterton think and believe that Saint Thomas Aquinas viewed man as a whole rather than as a beast, base on my research, its because that he believe that a man had to believe on something that no normal man would believe. I hope this would help
Interestingly enough, the FCC governs over newspapers. Your answer is the last option.
Breathing in the first sentence is a participle acting as an adjective.
The second sentence is an auxiliary verb. is and breathing make up the verb.
Breathing is ... go no further. Breathing is the subject of the third sentence. It can only be a noun or a pronoun when it is a subject. So here it is a gerund.