'Lyophilization' is often preferred over 'desiccation' in preserving pharmaceuticals because:

• A. Lyophilization adds more moisture than desiccation.
• B. Lyophilization preserves biological material without damaging its structure or potency, unlike dessication.
• C. Lyophilization involves a reduced number of complex procedures compared to desiccation.
• D. Lyophilization completely removes bacteria, in contrast to dessication, which does not ensure complete removal.

Answer: (B)