Given the following fragment of code, how many tests are required for

Given the following fragment of code, how many tests are required for 100% decision coverage?

if width > length then 
 
 biggest_dimension = width 
 
 if height > width then 
 
 biggest_dimension = height end_if 
 
 else 
 
 biggest_dimension = length if height > length 
 
 then 
 
 biggest_dimension = height end_if 
 
 end_if 
 
 

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