Answer:
I think it will option b hope it helps
<span>The answer is tuberculosis. </span>
you see katie helped sandra with homework, which helped sandra not fail. Because katie did not let sandra fail, sandra can graudate and get a job. She can also thank katie for not letting sandra fail and go homeless.
sandra helped katie rollerblade. which has no significant impact. Who cares about rollerblading.
your answer is C
It is gotten from the atmosphere by respiration, burning of fossil fuel, decay, excretion and decomposition of organic matter, fossilization etc