The disparity of the GDP between the rich and the poor has broadened in the last some decades.

have broadened in the last few decades

have widened in the last some decades

has widened in the last few decades

The disparity of the GDP between the rich and the poor has broadened i

1.	The disparity of the GDP between the rich and the poor has broadened in the last some decades.
A.	have widened in the last some decades
B.	has widened in the last few decades
C.	have broadened in the last few decades
D.	No improvement
Answer» C. have broadened in the last few decades