What, if anything, is wrong with the frequency table for this data?

34 21 54 44 33 17 22 56 78 62
48 25 39 64 70 65 52 43 21 22
46 28 39 76 63 39 42 55 29 30



A.
The frequency table should not have been set up in intervals.

B.
The recorded frequency for the interval 40 - 49 is incorrect.

C.
The recorded frequency for the interval 70 - 79 is incorrect.

D.
The frequency table is correct.