For the pneumatic circuit given below, following the pressing of the start push-button the sequence is: Cylinder A Limit switches a- a+ Cylinder B Limit switches b- b+ ط a+ a- Start A A+, B+, B-, A- B A+, A-, B+, B- C A+, B+, A-, B- D A+, A-, B-, B+ , ☑ M b+