A researcher measures fermentation in vitro of three fibers: Fiber A forms a viscous gel and yields high short-chain fatty acid (SCFA) production; Fiber B produces little SCFA and retains granular structure; Fiber C dissolves but yields modest SCFA and increases osmotic activity. Order the fibers from most typical of insoluble to most typical of soluble based on these characteristics.

• A. Most typical of insoluble → Fiber A; intermediate → Fiber C; most typical of soluble → Fiber B.
• B. Most typical of insoluble → Fiber B; intermediate → Fiber C; most typical of soluble → Fiber A.
• C. Most typical of insoluble → Fiber C; intermediate → Fiber B; most typical of soluble → Fiber A.
• D. All fibers are equally soluble in physiological conditions so you cannot rank them as typical of soluble or insoluble; fermentation and osmotic properties do not inform solubility classification.

Answer: (B)