A school contributed money for a project as follows:Pupils in a class 1-4 contributed sh. 10 eachPupils in class 5-8 contributed sh 20 each.Teachers contributed sh 200The head teacher contributed sh 500Each class in the school was double streamed with 30pupils per stream. The number of teachers including the headteacher was 26. How much money was contributed altogether?A. Sh 12700B. Sh 15100C. Sh 19900D. Sh 20100