6. Which two (most important) symptoms in your opinion can manifest themselves if a class does not satisfy SRP?

a) The number of methods in a class increases (threshold value ∼ 12).

b) Class hierarchy nesting level (depth of inheritance hierarchy) (threshold value ∼ 6).

c) Number of data members in a class (threshold value ∼ 3).

d) Methods with many lines of code (threshold value ∼ [10,20]).