Which of these is a correct expression for the one sided upper cusum?

• A. \(C_i^+=min⁡[0,x_i-(μ_0+K)+C_{i-1}^+]\)
• B. \(C_i^+=max⁡[0,x_i-(μ_0+K)+C_{i-1}^+]\)
• C. \(C_i^+=min⁡[0,(μ_0-K)-x_i+C_{i-1}^+ ]\)
• D. \(C_i^+=max⁡[0,(μ_0-K)-x_i+C_{i-1}^+]\)