Read the excerpt from a student essay about an international project. The Atlantic Rising Project involved students from multiple countries who measured rising sea levels in coastal communities along the Atlantic Ocean. The students communicated with each other online. The report helped raise awareness of some problems stemming from climate change.

Which additional line further explains how digital communication enhanced the project?

Students photographed, videotaped, and published the results online every time they measured sea levels.
Students used an online web-conferencing classroom to learn each other’s languages.
Students produced reports about each other’s countries by interviewing one another.
Students lobbied political leaders in each other’s country to pass climate change laws.