Which statement correctly contrasts globular proteins with fibrous proteins?

• A. Globular proteins have complex tertiary structures, while fibrous proteins have simple tertiary structures.
• B. Globular proteins are primarily structural, while fibrous proteins are enzymatic.
• C. Globular proteins are composed of only one type of secondary structure.
• D. Globular proteins are insoluble in water, while fibrous proteins are soluble.

Answer: (A)