Which among the following is the exact situation where the maxim 'Simple to Complex is implied?
ATeacher presents the concept of quadrilaterals with concrete models and then goes to the abstract properties
BTeacher contrasts the properties of a square and a parallelogram
CTeacher familiarises the entire quadrilateral family and then starts with specific ones
DTeacher starts with general features of quadrilaterals and then gives logical proofs for certain properties