Which of the following data sets is bimodal?



A.
{23, 43, 43, 46, 43, 28, 12, 28, 28}


B.
{23, 45, 23, 13, 46, 12, 25, 37, 35}


C.
{21, 24, 22, 32, 39, 56, 12, 42, 42}


D.
{23, 35, 23, 23, 45, 23, 38, 50, 45}