6. Read these sentences from the text. "Scientists have combined two approaches to studying the river's ecosystem transect is a group of closely spaced locations along the river. This data helps scientists A spatial approach, in which water samples are taken from a transect of the river. A analyze how changes relate to geography. A temporal approach, in which samples are taken from the same six locations 4-6 times from May through October. Based on these sentences, what does the word "approach" most nearly mean? a. a nearby location B. a reason to do something C. a way of doing something D. a measure of distance
