In a class test, the mean for Psychology was 45 and SD was 5, while for Maths the mean was 80 and SD was 5. Mr. Bipin Kumar gets 50 marks in Psychology and 70 marks in Maths. In which subject will be considered to have done better?

• A. He has done better in Maths
• B. He has done better in Psychology
• C. He performed equally in both
• D. No statement about his performance can be made.