Select the Letter of the Answer That Arranges the Ideas

Multiple Choice

Select the letter of the answer that arranges the ideas that develop each topic sentence below in their order of importance. Begin with the most important (or largest, most severe, most surprising) and continue to the least important. Louis Pasteur is revered as a great scientist for his three major discoveries.
____ Almost as important was Pasteur's development of pasteurization, the process that keeps beverages from spoiling, after he realized that tiny living beings, not chemical reactions, were spoiling beverages like milk, wine, vinegar, and beer.
____ Most important, after this Frenchman discovered that weakened forms of a disease could help a person or animal build up immunity to that disease, he created vaccines that have saved millions of lives.
____ Finally, Pasteur found ways to stop a silkworm disease that threatened to ruin France's profitable silk industry.

A) 2, 1, 3
B) 3, 2, 1
C) 1, 3, 2