If w is the mode and z is the median of the following set of numbers: 2.4, 2.1, 1.6, 2.6, 2.6, 3.7, 2.1 and 2.8. Then (3w, 2z) is

• A.(2.6, 2.5)
• B.(2.1, 2.5)
• C.(7.8, 5.0)
• D.(5.2, 5.0)