Suppose you have the following ML pipeline. Assume that the business metric is profit and the value threshold is $2 million/year. The results of your MinMax analysis are the Min part being $1.9 million/year and the Max part being $3 million/year. You decide to perform a sensitivity analysis. You've worked on all the stages for a while, and you've reached a point where it's more and more challenging to improve any of the stages. Determine in which stage of the pipeline you should invest if the results of the sensitivity analysis are as follows: Stage A would require 6 months to improve by 1%. When you improve stage A, the overall improvement in the ML pipeline will be $10 K/%. Stage B would require 2 months to improve by 1%. When you improve stage B, the overall improvement in the ML pipeline will be $200 K/%. Stage C would require 1 year to improve by 1%. When you improve stage C, the overall improvement in the ML pipeline will be $800 K/%. The ML pipeline doesn't show any appreciable improvement in results when stages D and E are improved