In the following passage some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Each year, the U.S. Department of Agriculture and the Environmental Protection Agency (1)______ federal pollinator experts to share the latest scientific findings on bee and pollinator health, and assess the status of (2)______ important insects, birds, bats and other species. One clear (3) ______ from this year’s meeting was that climate change (4)______ a new and formidable stressor for bees, potentially amplifying previously known issues in ways that scientists can’t yet (5)______ but need to prepare for.