Please answer this.

4) (20pts) Given the following transaction schedules, state whether there is any of the following concurrency related problem: Lost Update(WW conflict) Dirty Read WR conflict)/ Unrepeatable Reads (RW conflict)) in the each of the schedules, and explain why (with details). a) TIME T1 Read(A); A A 100 T2 Read(A) A A-50 4 Write(A) Read(B) 6 Write(A)