Which rhetorical device is used in this excerpt from "the extraordinary american" by g. k. chesterton?

he was a lean brown man, having rather the look of a shabby tropical traveller, with a grey moustache and a lively and alert eye. but the most singular thing about him was that the front of his coat was covered with a multitude of shining metallic emblems made in the shape of stars and crescents. i was well accustomed by this time to americans adorning the lapels of their coats with little symbols of various societies; it is a part of the american passion for the ritual of comradeship. there is nothing that an american likes so much as to have a secret society and to make no secret of it. but in this case, if i may put it so, the rash of symbolism seemed to have broken out all over the man, in a fashion that indicated that the fever was far advanced.

3one of the biggest impacts a building has on earth is the energy it uses. currently, most of the world’s energy comes from burning fossil fuels. these fuels are dirty and when they are burned they pollute the air and water. one way to burn fewer fossil fuels is to reduce the amount of electricity a building has to use. passive solar heating, which uses heat from the sun, reduces the amount of fossil fuel used to heat buildings. passive solar heating requires a south-facing wall made of glass. when sunlight shines through the wall, it is collected and used to warm the building. another way green buildings reduce their electricity use is to install other energy sources. for example, some green buildings use panels that turn energy from the sun into useable electricity. which is the best summary of paragraph 3? a) fossil fuels are dirty and pollute the air and water. most of the world's energy comes from these fuels. b) the biggest problem of buildings is that they use fuel that is dirty for heating. they need to do something to be more energy efficient. c) panels that turn energy from the sun into electricity and passive solar heating can stop the burning of fossil fuels which pollute air and water. d) since fossil fuels are dirty and pollute the air and water, other technologies that pollute less and produce energy have been developed like solar energy and green buildings.