Zimmer Centralpulse Is the World's Largest Producer of Replacement Hips

Zimmer Centralpulse is the world's largest producer of replacement hips and knees for orthopaedic surgery.
-Refer to Zimmer Centralpulse.The company has developed a new sturdier joint that will extend the life of the average replacement joint by five years.What did this longer-lasting joint result from?

A) applied research
B) experiential research
C) demographically oriented research
D) value-added research