Impact of crowdsourcing innovations

Zooniverse is an initiative across multiple universities that runs many online citizen science projects.

In the Plant Letters project, volunteers transcribe scanned images of letters to botanists at the Botanic Garden in the University of Coimbra, Portugal. Each letter is transcribed by multiple volunteers, so that mistakes made by a single volunteer won't be in the final transcription.

This screenshot shows the letter transcribing interface:

The university could have run this project in Portugal with local volunteers, but they chose to run it online.

Which of these does not describe a benefit of running Plant Letters as an online citizen science project?

(Choice A)
If they discover more letters to transcribe, it is easier to scale the project online than in person.
(Choice B)
Online volunteers will generally be of a higher quality than local volunteers.
(Choice C)
They can find volunteers from elsewhere in the world and increase interest in their mission beyond the local area.
(Choice D)
There are potentially many more volunteers on the Internet than locally.

AP®︎/College Computer Science Principles

Course: AP®︎/College Computer Science Principles > Unit 8

Problem