Libraries SQU Portal Attendance English (en) V d 00 A mechanical engineer is to select a water pump for a water supply project. There are two types of pumps Pump A and pump B. Cash flows for the two pumps are summarized in the following table. If the MARR is 8%, which pump the mechanical engineer should choose? Make the decision based on the Present worth analysis method: Pump A Pump B Investment cost ($) $85,600 $43,800 Annual net cash flow ($/year) $8,050 $5,200 Salvage value (8) $4,500 $6,000 Life time (years) ho 5 Select one: O a. Choose B because its PWB = -$31,854.46 O b. Choose A because its PWA = $2,499.47 O c Choose A because its PWA=-$9,499.47 O d. None of these O e. Choose A because its PWA--$29,490.47 Of. Choose B because its PW8 - $3,854.46 O g. Choose B because its PWg = $31,850.46 Oh. Choose B because its PWB = $1,854.46 O . Choose A because its PWA= $29,499.47