the key steps in the analyze phase are? a$)$ Map the process, brainstorm the X$\text{'}$s$,$ complete a GR&R$,$ calculate baseline b$)$ Brainstorm the X$\text{'}$s$,$ complete a regression analysis, write a control plan c$)$ benchmark the process, determine root cause, screen the root causes d$)$ Identify your project Y$,$ complete the charter and define the performance standards