This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
What is the latest reference to body length in ICD-10 to call it perinatal moality rate? 
Select and explain. 
A. 28cm, B. 30cm, C. 35cm, D. 38cm
C: 35cm
Answer: C: 35cm 
Explanation: parks textbook of preventive and social medicine 23rd edition * ninth revision of international classification of diseases (ICD) added that :(1) babies choosen for inclusion in perinatal statistics should be tjose above a minimum bih weight ie1000g at bih. (2)if bihweight is not available ,a gestational period of atleast 28weeks should be used if (1)&(2)is not available ,body length of atleast 35cm should be used .