C the narrator traveled with the artillery man
<span>Unfortunately, we are not given with the passage so that we will be able to identify the topic and answer this item. However, it should be noted that the topic of the passage is usually the first sentence of the passage so readers can already grasp the idea. The answer is therefore letter A. </span>
The definition of a sustainable environment is an <span>environment that can simultaneously meet the needs of the ones living in the environment without damaging it. Therefore, B would be incorrect because there is no concern for the environment's safety. C would also not make sense because it implies that there will be damage to the environment. D also does not make sense because there is nothing concerning the equilibrium between those who exist in the environment and the environment. Therefore A should be your best answer by choice.</span>
