Read this passage:

One of the first strikes of cotton-factory operatives that ever took place in this country was that in Lowell, in October, 1836. When it was announced that the wages were to be cut down, great indignation was felt, and it was decided to strike, en masse. This was done. The mills were shut down, and the girls went in procession from their several corporations to the "grove" on Chapel Hill, and listened to "incendiary" speeches from some early labor reformers. One of the girls stood on a pump, and gave vent to the feelings of her companions in a neat speech, declaring that it was their duty to resist all attempts at cutting down the wages. This was the first time a woman had spoken in public in Lowell, and the event caused surprise and consternation among her audience. . . . It is hardly necessary to say that so far as results were concerned this strike did no good. The dissatisfaction of the operatives subsided, or burned itself out, and though the authorities did not accede to their demands, the majority returned to their work, and the corporation went on cutting down the wages.

Which events are correlated but not causally related?

A. The public protests of the women against the company and the company's refusal to raise wages
B. The announcement of wage reductions and the women's strike
C. The women's strike and the shutdown of the mills
D. The march to Chapel Hill and the public protests of the women against the company's wage reductions