Answer:
B) Serum can be damaged by low temperatures.
Explanation:
According to the excerpt from "Susan Butcher and the Iditarod Trail," by Ellen M. Dolan, doctors in Anchorage packed and wrapped the vials of serum in order to protect them from damage and cold temperatures during the transportation. In fact, they used "several layers of quilting and then canvas," and included written instructions on how the serum was supposed to be warmed during the journey.
the answer is b i know because i just did it and i know for afact this right
