A project manager is considering hiring ONE new employee, either a jr programmer or a sr programmer, to help complete a large scale project. The cost (in dollars) of the project is given by C(x,y)=26x2+764ln(xy2)24xy185x+23y+2000 where x represents the number of jr programmers and y represents the number of sr programmers working on the project. Use marginal cost to determine which of the following options is the MOST cost effective if 16 jr programmers and 8 sr programmers are currently employed. a) It is NOT cost effective for the project manager to hire at this time. b) The project manager should hire one more sr programmer. c) The project manager should hire one more jr programmer. d) There is not enough information provided