Per the Nicholas and Steyn text, the basic life cycle of human- designed systems is the series of logical, structured steps called the systems development cycle. The following figure shows the four- phase of the system development cycle. A Phase A: Conception phase Phase B: Definition phase Phase D: Operation phase Phase C: Execution phase System Improvement System termination (To Phase A: repeat cycle) The three descriptions given below describe the overall focus and efforts undertaken in Phase A, Phase B and Phase C. Fill in the blank with A, B or C that corresponds to each description. Per the Nicholas and Steyn text, the basic life cycle of human- designed systems is the series of logical, structured steps called the systems development cycle. The following figure shows the four- phase of the system development cycle. A Phase A: Conception phase Phase B: Definition phase Phase D: Operation phase Phase C: Execution phase System Improvement System termination (To Phase A: repeat cycle) The three descriptions given below describe the overall focus and efforts undertaken in Phase A, Phase B and Phase C. Fill in the blank with A, B or C that corresponds to each description