Read the paragraph. solar flares are explosions that occur above the sun’s surface. they usually erupt around sunspots, which are places on the sun where gases are cooler than the gases around them. solar flares are powerful. when a solar flare occurs, gas shoots out from the sun and energy escapes into space. if this energy reaches earth, it can cause problems such as interference with radio signals or power outages. solar flares, as viewed from earth can also be beautiful. auroras are colorful displays of light that can be seen in the night sky. question: imagine that your teacher assigned you the following topic: what is a solar flare? you wrote this passage in response. what does the underlined sentence add to your essay? a: it gives an historical example about solar flares. b: it cites expert testimony about solar flares. c: it explains why solar flares are powerful. d: it gives readers a definition of solar flare.

Which line in the passage can be used as textual evidence to support the following claim? many people suffer from depression. depression is a serious mental illness that affects a person physically and mentally. it interferes with a person's ability to function normally and enjoy pleasurable activities. some types of depression include major depressive disorder, seasonal affective disorder, and postpartum depression. many people confuse depression with general sadness, though people are becoming increasingly aware that it is indeed a serious illness. often people suffering from depression think that it is an incurable condition. they don’t seek any treatment because they are afraid of how others will judge them. based on data from the national institute of medical health, depressive disorders are common and affect 9.5 percent of adults in the united states, or about 19 million people every year. more than 80 percent of people with depressive disorders improve when they receive appropriate treatment.