What pair of statements about Blehert's and Behr's work represent an observation that was first made directly in the field and then a repeat, reinforcing observation made in the lab?

Question

Choose one or more:
A. A specialist with the New York State Health Department, on an exploration, found dead bats with white noses.
B. A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates.
C. A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab at room temperature.
D. A specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose.

Answer 1

A. A specialist with the New York State Health Department, on an exploration, found dead bats with white noses.
B. A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates.