B.3 A description of 5 typical information-processing routines is given below. 9-0.7 1-0-1-0 0-0 10 For each information processing routine below (a)-(e), identify one of the above flowchart fragments, (1)-(10), that best describes the routine. If not matched, put "N/A. (5%) Description Flowchart diagram (put down the number in the space provided) (a) Process to update database (b) Input a document and print out several copies with a filing sequence (c) If today is Monday, I go to school. Otherwise, I go to shopping (d) A clerical staff input all the data into computer, display on the screen, generate several reports and store in database (e) The program first computes the sum of all students' marks, average the total, calculate the standard deviation, identify the outliers B.4 Explain why it is important to identify the external agents as a first and foremost step in building a DFD modeling. (5 %) B.5 Explain, with justification, why a system flowchart is NOT a tool used in analyzing information system. (5 %)