If taking about a magazine article, the most suitable option would be option <span>3"suggestions for reducing carbon footprints". In general, this type of articles develops lighter content in comparison to other articles. So the topic should be easy reading and understanding. In the case of 1 and 2, the information that can be provided could be more technical or specific connected to the topic. And the final option would be considered a topic to introduce and then develop. </span>
The scientists tracked several geeses flight paths.otherwise we can rewrite the sentence as "several geeses flight paths tracked by the scientists"
D.the poem uses imagery to show the speakers love
