Study carefully the table given below and answer the question asked here…

Study carefully the table given below and answer the question asked here under. A college has four programs B.A., B.Sc., B.Com. and B.B.A. The results of the mid-semester and end-semester tests are shown in the table given below.

If the number of students passing a test be considered a criterion for comparison of difficulty level of two tests, then mid-semester test of which of the following programs was the least difficult?