MTEL CLST Practice Test 2

Read the passage, then answer the question.

"(1) Citizen science projects invite volunteers to collect data that professional researchers could never gather alone. (2) In one long-running bird count, thousands of participants record the species they see on a single winter day, producing a continental snapshot that no university team could afford to assemble. (3) Skeptics once dismissed such data as unreliable. (4) Yet when researchers compared volunteer counts with those of trained ornithologists, the two sets matched closely for common species, although volunteers more often missed rare or hard-to-identify birds. (5) Today, project designers address that gap by offering identification training and by asking participants to photograph unusual sightings."

Which conclusion is best supported by the information in the passage?