Read the passage from “a gold slipper” by willa cather

the gold slipper

an elderly man, with very marked features and iron-grey hair, sat in the fifth row of the stalls, on the right-hand aisle. he was a bony man, and the people behind him noticed him and thought he looked strong. he had heard bonanni in her best days and many great lyric sopranos from patti to melba, and he was thinking that none of them had sung the mad scene better than cordova, who had only been on the stage two years, and was now in new york for the first time.

cordova herself was altogether intent on what she was doing and was not thinking of her friends, of lushington, or logotheti, nor of the bony man in the stalls; certainly not of society, though it was richly represented by diamonds in the subscriber's tier.

which point of view is used in the passage?

omniscient third-person
first-person
limited third-person

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.