Which technique of writing does the author use in portraying
dr. hood in this passage?

indirect characterization

direct characterization

internal monologue

show, don't tell

the absence of mr glass
by g. k. chesterton (excerpt)

dr hood paced the length of his string of apartments, bounded—as the boys' geographies say—on the east by the north sea and on the west by the serried ranks of his sociological and criminologist library. he was clad in an artist's velvet, but with none of an artist's negligence; his hair was heavily shot with grey, but growing thick and healthy; his face was lean, but sanguine and expectant. everything about him and his room indicated something at once rigid and restless, like that great northern sea by which (on pure principles of hygiene) he had built his home.

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.