By 1918, advances in tractor technology had led to increased yield, efficiency of labor, profit per square acre, and reduced the amount of time in which fields were planted.
A:profit per square acre, and reduced the amount of time
B:profit per square acre, and had reduced the amount of time
C:profit per square acre, and a reduction in the amount of time
D:and profit per square acre, but the amount of time was reduced
E:and profit per square acre while reducing the amount of time
OA : E
Am not able to figure out why D is wrong.
Please explain.
Thanks.
[spoiler][/spoiler]
A:profit per square acre, and reduced the amount of time
B:profit per square acre, and had reduced the amount of time
C:profit per square acre, and a reduction in the amount of time
D:and profit per square acre, but the amount of time was reduced
E:and profit per square acre while reducing the amount of time
OA : E
Am not able to figure out why D is wrong.
Please explain.
Thanks.
[spoiler][/spoiler]
