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: Dental
Which of the following statement is wrong about posterior teeth selection? 
Select and explain. 
A. The buccolingual width of posterior teeth should be equal to width of natural teeth they replace, B. Interarch space influences posterior teeth selection, C. Porcelain teeth are used when they are opposing either natural teeth or porcelain artificial teeth, D. Mesiodistal space available for posterior teeth extends from canine to anterior of retromolar pad
A: The buccolingual width of posterior teeth should be equal to width of natural teeth they replace
Answer: A: The buccolingual width of posterior teeth should be equal to width of natural teeth they replace 
Explanation: Buccolingual width should be less than natural teeth they are replacing. However, their width should be enough, so as to maintain bolus on occlusal table during mastication.