Direction: The marks (out of 50) obtained by 30 students in a mathematics test are listed as below: 42, 38, 22, 34, 44, 50, 45, 32, 48, 10, 8, 12, 24, 18, 39, 44, 50, 42, 32, 38, 42, 44, 50, 48, 22, 24, 34,45,32,18 The number of students who obtained marks less than or equal to 38 is______

• A. 16    
• B.   15
• C.       18
• D.    14
• E.     None of these