Without making any calculations, which distribution of data has the largest standard deviation?
A.)1, 1, 1, 1, 4, 4, 7,7,7,7
B.)1, 1, 1,4,4,4,4,7,7,7
C.)1, 1, 4, 4, 4, 4, 4, 4, 7,7
D.)1, 4, 4, 4, 4, 4, 4, 4, 4, 7