The following four investment opportunities, of equal risks, are available, but have different capital costs and durations as follows. Use the appropriate techniques of investment analysis to select the most economic investment alternative. All or part of the money can be invested elsewhere at a rate of $20\%.$ In Thousands of Dollars Project $0123456789$ A $-450150150150150150$ B $-55030021014710372$ C $-1,00040035030025020015010050$ D $-1,500500475450425400350300250200$