Answer fast please

The Minute Maid Company (MMC) provides maids for house cleaning. Mr. Clean, the CEO of MMC estimates that the minimum numbers of maids required for the next year are: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 45 30 20 30 20 45 50 60 70 80 90 100 After hiring maids, Mr. Clean first sends them on a four-month training course. Following training, the maids begin active cleaning. Each month, 15% of the maids quit. Mr. Clean wants to determine the least number of new trainees to hire for the next eight months, while still maintaining the minimum requirements as indicated in the above table. At the beginning of January, the cleaning staff consists of 75 maids and 50 trainees. Half the trainees will begin active cleaning on 1st March and the rest will start on 1st April. We want to build an integer programming model and then use Excel's Solver to solve Mr. Clean's problem. The total number of maids available in February is O a. 68 O b. 45 O c. 75 O d. 64