This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Human identification, Subject name: Forensic Medicine
The technique of identification based on the evaluation of friction ridges on the volar areas is called as 
Select and explain. 
A. Dactylography, B. Poroscopy, C. Ridgeology, D. Rugoscopy
C: Ridgeology
Answer: C: Ridgeology 
Explanation: Ridgeology : Ridgeology is the study of friction ridges which are composed of the edges of ridge units which vary in size, shape and alignment.