In a transformer, the core loss is found to be 46 W at 50 Hz and is 80 W at 70 Hz, both losses being measured at the same peak flux density. The hysteres is loss and eddy current loss at 60 Hz is

A

11 W, 20 W

B

30 W, 45 W

C

16 W, 30 W

D

22 W, 40 W