While researching a topic, a student has taken the following notes:
<ul> <li>Two surveys assessed urban tree canopy.</li> <li>Survey 1 used aerial drone imagery analyzed by an algorithm.</li> <li>Survey 2 used trained volunteers walking transects on the ground.</li> <li>Survey 1 covered 100 km^2 in two days.</li> <li>Survey 2 covered 5 km^2 in two weeks but recorded species and tree health more accurately.</li> </ul> The student wants to contrast the tradeoffs of the two survey methods. Which choice most effectively uses relevant information from the notes to accomplish this goal?Which choice most effectively makes the student's point?
- Acheck_circle
While drone imagery covered 100 km^2 in two days, ground transects covered only 5 km^2 in two weeks but recorded species and tree health more accurately.
- B
Survey 1 used aerial drone imagery.
- C
Both surveys assessed urban tree canopy.
- D
Survey 2 covered 5 km^2 in two weeks.
Explanation
The goal is methodological tradeoffs (coverage vs. accuracy). Choice C juxtaposes both. A and D describe one method, B is similarity.