This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Inner ear fully developed at 
Select and explain. 
A. 4 weeks, B. 10 weeks, C. 20 weeks, D. 32 weeks
C: 20 weeks
Answer: C: 20 weeks 
Explanation: Ans. is 'c' i.e., 20 weeksDevelopment of membranous internal ear is completed by 10" weeks and reaches its adult size and shape by 20-22 weeks when the cochlea is developed sufficiently.