The answer is C. Time moves very quickly and people must live life to the fullest.
Well, it depends on how you write. As you may know,a external conflict is a conflict occurring outside, like tornado or fires. A internal conflict is a conflict occurring inside like emotions. You could write about a man surviving on a island, balancing the external conflict (weather, hunger, etc) while still maintaining the emotional conflicts (misses family, difficult to kill animals).
Images of nature is the answer.Nature provides vivid images in poems and poets use them to make readers have profound effects upon people´s senses.All poems no matter the literary movements they are coming from, have images of nature at least once in their stanzas.They cause feelings of awe, amazament and mellancolly sometimes.Poetry is all about that.